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Autoimmune and demyelinating optic neuritis
Neuritis ópticas desmielinizantes y autoinmunes
A. García Ortegaa,
Corresponding author
albertogarciaortega83@gmail.com

Corresponding author.
, F.J. Montañez Camposa, S. Muñozb, B. Sanchez-Dalmauc
a Servicio de Oftalmología, Sección de Neuroftalmología y Estrabismos, Hospital Universitari Son Espases, Palma de Mallorca, Spain
b Hospital Universitari de Bellvitge, Consultora de Neuroftalmología, L’Hospitalet de Llobregat, Spain
c Unidad de Neurooftalmología, Institut Clínic d’Oftalmología (ICOF), Hospital Clínic, Barcelona, Spain
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The typical ON is unilateral and predominanlty affects females &#40;75&#37;&#41; and young people between 15 and 45 years of age&#46; ON is more prevalent in northern European countries and the USA &#40;85&#37;&#41;&#46; Most are caused by multiple sclerosis &#40;MS&#41;&#44;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> either in the context of established disease or as an isolated form of onset &#40;isolated clinical syndrome&#41;&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">ON with atypical characteristics &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41; is more prevalent in non-Caucasian populations&#46; It has various causes and MS is not one of the main ones&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Physiopathology<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;5</span></a></span><p id="par0020" class="elsevierStylePara elsevierViewall">The optic nerve is formed by the axons of the retinal ganglion cells&#44; which myelinize in the retrolaminar portion as they exit the <span class="elsevierStyleItalic">lamina cribrosa</span>&#46; Myelin is provided by oligodendrocytes&#44; which are affected in MS&#46; In animal models it has been observed that the difference between papillitis and retrobulbar ON depends on the place of compromise&#44; before or after the <span class="elsevierStyleItalic">lamina cribrosa</span>&#46; In both cases there is an inflammatory infiltration of monocytes mediated by T-helper cells &#40;Th&#41;&#46; Although the response is mainly cellular&#44; there may be a humoral component&#46; This inflammation is accompanied by areas of demyelination &#40;plaques&#41; with associated axonal degeneration&#46; Myelin is phagocytized by macrocytes and activated microglia&#44; and a scar reaction appears&#46; Astrocytes participate in the appearance of fibrous tissue in plaques that interrupt the nerve impulse&#46; After the inflammatory episode&#44; a usually incomplete remyelinization occurs&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Natural history<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a></span><p id="par0025" class="elsevierStylePara elsevierViewall">The typical ON starts with vision loss that worsens in about 10&#8211;15 days&#46; A rapid visual recovery appears after two to three weeks&#44; and is usually almost complete after about five weeks&#46; There may be improvement up to a year after the onset of the condition&#46; Approximately 90&#37; of patients with typical optic neuritis recover visual function after the first episode on the basis of natural&#44; untreated evolution&#46; The visual prognosis is generally good&#46; However&#44; very low initial visual acuity &#40;no light perception&#41; is a factor in poor long-term prognosis&#46; Prolongation of the symptomatology or no improvement over time should alert to the possibility of another process&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Clinic</span><p id="par0030" class="elsevierStylePara elsevierViewall">The condition may be acute&#44; subclinical &#40;asymptomatic&#41; or chronic&#46; The acute form is the most common&#46;<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a></p><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Symptoms</span><p id="par0035" class="elsevierStylePara elsevierViewall">Unilateral compromise with progressive <span class="elsevierStyleBold">visual loss</span> in hours or days&#44; accompanied by <span class="elsevierStyleBold">ocular or orbital pain</span> that precedes in a couple of days or coincides with visual loss in up to 92&#37; of cases&#46; The pain is retroocular&#44; of mild intensity and worsens with globe adduction and elevation&#46; Chromatic vision is significantly compromised&#46; Positive visual phenomena &#40;photopsies&#41; have been described as flashes or spots such as snowflakes&#44; and even frontal headaches&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Other typical&#44; but not specific&#44; associated phenomena are<ul class="elsevierStyleList" id="lis0005"><li class="elsevierStyleListItem" id="lsti0005"><span class="elsevierStyleLabel">&#8226;</span><p id="par0045" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleUnderline">Uhthoff&#8217;s Phenomenon</span>&#58; worsening or temporary visual blurring triggered by heat&#44; stress&#44; or exercise&#46; It appears in the chronic phase of the disease&#46;</p></li><li class="elsevierStyleListItem" id="lsti0010"><span class="elsevierStyleLabel">&#8226;</span><p id="par0050" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleUnderline">Pulfrich effect</span>&#58; abnormal stereoscopic perception of moving objects due to asymmetric conduction speed between the compromised and healthy optic nerve&#46;</p></li></ul></p></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0055">Exploratory findings</span><p id="par0055" class="elsevierStylePara elsevierViewall"><ul class="elsevierStyleList" id="lis0010"><li class="elsevierStyleListItem" id="lsti0015"><span class="elsevierStyleLabel">&#8226;</span><p id="par0060" class="elsevierStylePara elsevierViewall">Relative Afferent Pupil Defect &#40;RAPD&#41; in the affected eye&#44; which can be quantified with neutral density filters&#46; In cases of bilateral neuritis it may not be very evident&#46;</p></li><li class="elsevierStyleListItem" id="lsti0020"><span class="elsevierStyleLabel">&#8226;</span><p id="par0065" class="elsevierStylePara elsevierViewall">Acquired dyschromatopsia&#46; Color vision is usually very altered even in cases of relative preservation of visual acuity at the onset of neuritis&#46;</p></li><li class="elsevierStyleListItem" id="lsti0025"><span class="elsevierStyleLabel">&#8226;</span><p id="par0070" class="elsevierStylePara elsevierViewall">Altered contrast sensitivity &#40;Pelli-Robson films&#41;&#46;</p></li><li class="elsevierStyleListItem" id="lsti0030"><span class="elsevierStyleLabel">&#8226;</span><p id="par0075" class="elsevierStylePara elsevierViewall">Highly variable visual field defects<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a>&#58;<ul class="elsevierStyleList" id="lis0011"><li class="elsevierStyleListItem" id="lsti0035"><span class="elsevierStyleLabel">&#8226;</span><p id="par0080" class="elsevierStylePara elsevierViewall">Fuzzy defect&#58; 48&#37;</p></li><li class="elsevierStyleListItem" id="lsti0040"><span class="elsevierStyleLabel">&#8226;</span><p id="par0085" class="elsevierStylePara elsevierViewall">Localised defect &#40;altitudinal or archaic&#41;&#58; 20&#37;</p></li><li class="elsevierStyleListItem" id="lsti0045"><span class="elsevierStyleLabel">&#8226;</span><p id="par0090" class="elsevierStylePara elsevierViewall">Central or centrocecal scotoma&#58; 8&#37;</p></li><li class="elsevierStyleListItem" id="lsti0050"><span class="elsevierStyleLabel">&#8226;</span><p id="par0095" class="elsevierStylePara elsevierViewall">Other defects or scotomas&#58; 24&#37;&#46;</p></li></ul></p></li><li class="elsevierStyleListItem" id="lsti0055"><span class="elsevierStyleLabel">&#8226;</span><p id="par0100" class="elsevierStylePara elsevierViewall">Fundus&#58; the optic disc is normal at the onset of retrobulbar neuritis or has diffuse effacement with or without bleeding in papillitis &#40;20&#8211;40&#37;&#41;&#46; Papillary pallor indicates past permanent damage&#46; This finding is not useful to establish the diagnosis of optic neuritis in case of a new acute visual loss&#46;</p></li><li class="elsevierStyleListItem" id="lsti0060"><span class="elsevierStyleLabel">&#8226;</span><p id="par0105" class="elsevierStylePara elsevierViewall">Increased thickness of the circumpapillary &#40;CP&#41; retinal nerve fiber layer &#40;RNFL&#41; in acute phase optical coherence tomography &#40;OCT&#41; in up to 50&#37; of cases&#46; Subsequently&#44; a significant loss of nerve fibres is established during the first 6 months of follow-up&#46;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">8</span></a> This mainly affects the upper and lower quadrants and is more prominent in the atypical ON&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> Atrophy and thickness loss in RNFL-CP has been documented in demyelinating diseases even without episodes of symptomatic neuritis&#44; and may respond to subclinical activity or transynaptic degeneration of the optic pathway&#46;<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a></p></li></ul></p></span></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0060">Diagnosis<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#44;3</span></a></span><p id="par0110" class="elsevierStylePara elsevierViewall">Diagnosis is based on the above described clinical presentation and exploratory findings&#46; The typical pathocrony of ON of demyelinating etiology is highlighted&#58; acute onset&#44; progressive worsening between 7&#8211;10 days&#44; a period of functional stability &#40;of approximately the same duration as the previous one&#41;&#44; followed by a period of recovery&#44; of variable duration and amount&#46; The possibility of non-demyelinating etiologies should be considered if there are atypical features such as simultaneous and bilateral involvement&#44; if the patient is outside the age range&#44; if the pathocronia does not follow a typical pattern&#44; etc&#46; The main clinical differences between typical and atypical typical ON are listed in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Further studies<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></span><p id="par0115" class="elsevierStylePara elsevierViewall">Co-management between the ophthalmologist and the neurologist is recommended&#46;</p><p id="par0120" class="elsevierStylePara elsevierViewall">Upon initial suspicion of typical or atypical neuritis&#44; a complete physical examination by a neurologist and an analysis &#40;hemogram&#44; ionogram&#44; biochemistry&#44; proteinogram&#44; globular sedimentation rate &#40;ESR&#41;&#44; C-reactive protein &#40;CRP&#41;&#44; as well as magnetic resonance imaging &#40;MRI&#41; are required&#46;</p><p id="par0125" class="elsevierStylePara elsevierViewall">Examination of the cerebrospinal fluid &#40;CSF&#41; for IgG oligoclonal bands &#40;OCB&#41; may be helpful&#44; although this should be postponed if the patient has been treated with steroids in the acute phase&#46;<ul class="elsevierStyleList" id="lis0015"><li class="elsevierStyleListItem" id="lsti0065"><span class="elsevierStyleLabel">&#8226;</span><p id="par0130" class="elsevierStylePara elsevierViewall">The initial analysis has a low diagnostic yield in typical neuritis&#44; while in atypical ones it is useful to direct the research according to the patient profile&#58; serologies to rule out infectious causes &#40;syphilis&#44; <span class="elsevierStyleItalic">Herpesviridae</span> family&#44; intracellular bacteria &#91;<span class="elsevierStyleItalic">Bartonella&#44; Coxiella&#44; Rickettsia&#44; Toxoplasma&#93;&#44; Borrelia&#44;</span> tuberculosis&#44; hepatitis B and C&#44; HIV and West Nile virus&#41; and autoimmunity profile &#40;ANA&#44; ECA&#44; p-ANCA and c-ANCA&#41;&#44; as well as the determination of specific antibodies &#40;IgG-AQP4&#44; Anti-MOG&#44; Anti-CRMP5&#44; Anti-GFAP3&#41;&#46;</p></li><li class="elsevierStyleListItem" id="lsti0070"><span class="elsevierStyleLabel">&#8226;</span><p id="par0135" class="elsevierStylePara elsevierViewall">Brain and orbital MRI with gadolinium and fat suppression&#44; preferably 1&#8722;2&#8239;mm thin sections&#46; In the acute phase&#44; &#40;first 4 weeks&#41; it is characteristic to enhance the optic nerve in T1 with contrast and increase the signal in STIR sequences&#46; In the chronic phase&#44; thinning of the nerve with hypersignal in T2 appears in relation to the degree of visual impairment&#46; If neuritis is associated with MS&#44; there can be lesions in the periventricular white matter&#44; chiasm&#44; brain stem and cerebellum&#46; Active lesions capture gadolinium&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> The presence of demyelinating lesions on initial MRI is a risk marker for the development of MS&#46;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a></p></li><li class="elsevierStyleListItem" id="lsti0075"><span class="elsevierStyleLabel">&#8226;</span><p id="par0140" class="elsevierStylePara elsevierViewall">In atypical neuritis&#44; more extensive&#44; bilateral involvement may occur&#44; predominantly in the posterior of the optic nerve&#46; It may also involve the chiasm and optic bands&#44; or even predominantly affect the sheath of the optic nerve as in perineuritis<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11&#44;12</span></a> or in neuritis associated with anti-MOG&#46;<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a></p></li><li class="elsevierStyleListItem" id="lsti0080"><span class="elsevierStyleLabel">&#8226;</span><p id="par0145" class="elsevierStylePara elsevierViewall">There is a reduction in the amplitude of the P100 wave and an increase in its latency in acute phase PEV&#46; Normalisation of the P100 amplitude occurs in the visual recovery phase&#44; although increased latency persists&#46;</p></li><li class="elsevierStyleListItem" id="lsti0085"><span class="elsevierStyleLabel">&#8226;</span><p id="par0150" class="elsevierStylePara elsevierViewall">The presence of OCB and the elevation of CSF immunoglobulin G suggest the presence of a demyelinating disease according to McDonald&#39;s criteria&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a></p></li></ul></p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Treatment<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></span><p id="par0155" class="elsevierStylePara elsevierViewall">It is prescribed individually according to the depth of the initial visual loss and its evolution during the first week&#46; Treatment with megadose steroids is ideally initiated after the imaging test&#44; which should be obtained as soon as possible&#46; The multicenter clinical trial &#8216;Optic Neuritis Treatment Trial&#8217; &#40;ONTT&#41; demonstrated that the administration of high-dose intravenous steroids accelerated visual recovery in patients with typical ON&#44; although it did not modify the final visual prognosis&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> The initial trend was to treat with intravenous methylprednisolone 250&#8239;mg&#47;6&#8239;h for 3 days&#46; It is currently accepted to administer 1&#8239;g&#47;24&#8239;h E&#46;V&#46; for 3 days on an outpatient basis&#46; The ONTT study also showed that the use of oral steroids could increase the rate of new episodes of ON&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> If there is a recurrence of visual loss on stopping or lowering the dose&#44; the study needs to be expanded in collaboration with an internal medicine specialist&#46;</p><p id="par0160" class="elsevierStylePara elsevierViewall">In contrast to the ONTT result&#44; a Cochrane review established that steroid treatment did not improve visual acuity&#44; contrast sensitivity or visual field in the long term&#46;<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> Likewise&#44; two studies studied the effect of intravenous megadose of methylprednisolone versus oral steroids at bioequivalent doses&#44; 1000&#8239;mg<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> or 1250&#8239;mg&#46;<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> Both studies yielded similar results&#59; therefore&#44; it was concluded that oral megadosis did not differ significantly from endovenous megadosis in the treatment of acute optic neuritis&#46; The follow-up of 28 days and 6 months respectively&#44; poses some limitations on the validity of the latter studies&#46;</p><p id="par0165" class="elsevierStylePara elsevierViewall">Recently&#44; a new study of the role of steroids has been proposed&#44; taking into account the variables of time of evolution&#44; dose and associated antibodies&#46;<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a></p><p id="par0170" class="elsevierStylePara elsevierViewall">If ON occurs in the context of MS defined by McDonald criteria&#44; the CHAMPS or ETOMS studies<a class="elsevierStyleCrossRefs" href="#bib0100"><span class="elsevierStyleSup">20&#44;21</span></a> have established the usefulness of immunomodulatory treatment&#46;<a class="elsevierStyleCrossRef" href="#bib0110"><span class="elsevierStyleSup">22</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Update on the classification of autoimmune ON</span><p id="par0175" class="elsevierStylePara elsevierViewall">Beyond the classification between typical or atypical neuritis by the clinical characteristics defined in the ONTT study&#44; alternatives have been proposed&#46; Petzold&#8217;s classification in 2014 was eminently clinical &#40;<a class="elsevierStyleCrossRef" href="#tbl0020">Table 4</a>&#41; and only took into account the presence of IgG-AQP4 antibodies&#46;<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a> The discovery of new antibodies has produced a revolution with new classification proposals&#46;<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">24</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0025">Table 5</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0020"></elsevierMultimedia><elsevierMultimedia ident="tbl0025"></elsevierMultimedia></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Multiple sclerosis<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#44;5&#44;7</span></a></span><p id="par0180" class="elsevierStylePara elsevierViewall">MS is a chronic and disabling disease that affects young adults&#46; It is 3&#8211;4 times more common in women than in men&#46; ON is a typical form of compromise&#44; it may be the first manifestation and&#47;or reappear throughout the course of the disease&#46;</p><p id="par0185" class="elsevierStylePara elsevierViewall">MS etiology is multifactorial and not completely understood&#46; There is a genetic predisposition&#44; erroneous responses to unidentified environmental antigens and an autoimmune response mediated by collaborating T-lymphocytes &#40;Lth&#41;&#46; These access the central nervous system &#40;CNS&#41; and cause a cellular and humoral inflammatory reaction that destroys both myelin &#40;focal lesions known as plaques&#41; and the axonal tissue they cover&#46;</p><p id="par0190" class="elsevierStylePara elsevierViewall">The diagnosis of MS is established through a combination of clinical&#44; neuroimaging and laboratory criteria that have been unified and agreed upon&#46; These are McDonald&#8217;s criteria and are not treatment guidelines&#46; Their purpose is to agree on the procedures to be performed for the correct diagnosis of MS and they are applied primarily to patients with a clinical isolated syndrome &#40;CIS&#41;&#46; The International Advisory Committee on Clinical Trials in MS last reviewed and updated the criteria in 2017&#46; It also discussed misdiagnosis&#44; differential diagnosis and the appropriate application of these criteria with particular emphasis on diagnosis in various populations and in patients with atypical presentations&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a></p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Neuromyelitis optica &#40;NMO&#41;<a class="elsevierStyleCrossRefs" href="#bib0125"><span class="elsevierStyleSup">25&#44;26</span></a></span><p id="par0195" class="elsevierStylePara elsevierViewall">NMO &#40;Devic&#8217;s disease&#41; had been considered a more aggressive form of MS with preferential involvement of the optic nerve and spinal cord&#46; The detection of antiaquaporin-4 antibodies &#40;AQP4&#41; in 2005 produced a new diagnostic approach&#46; It is now accepted that NMO is a demyelinating disease different from MS&#46; IgG-AQP4 are antibodies to the AQP4 membrane protein present in astrocytes&#44; so NMO is proposed as an astrocytopathy&#46;</p><p id="par0200" class="elsevierStylePara elsevierViewall">It is more frequent in Asian and African populations&#44; and affects children and young people&#44; especially women&#46; Bilateral or simultaneous involvement is more indicative of NMO than MS&#46; It can also affect the optic chiasm and bands and the M&#252;ller cells of the retina&#46;<a class="elsevierStyleCrossRefs" href="#bib0135"><span class="elsevierStyleSup">27&#44;28</span></a> It causes significant visual field defects&#44; with high contrast vision less than 20&#47;200&#46; It is often accompanied by transverse myelitis with paraparesis&#46; In 30&#37; there are other autoimmune disorders&#44; mainly systemic lupus erythematosus &#40;SLE&#41; and Sj&#246;gren&#39;s disease and&#44; less frequently&#44; a paraneoplastic disorder&#46;<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">29</span></a></p><p id="par0205" class="elsevierStylePara elsevierViewall">The diagnosis is based on the latest Wingerchuk criteria and depends on the presence of IgG-AQP4&#46; If antibodies are detected&#44; only neuritis or any other &#8220;nuclear&#8221; manifestation is required to establish the diagnosis of NMO&#46; If the antibodies are negative&#44; the criteria are stricter&#58; the presence of two or more typical pictures with their characteristic lesions is required on brain and spinal cord MRI<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a> &#40;<a class="elsevierStyleCrossRef" href="#tbl0030">Table 6</a> and <a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0030"></elsevierMultimedia><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0210" class="elsevierStylePara elsevierViewall">The initial treatment is with corticosteroids and plasmapheresis&#44; sometimes with the addition of immunosuppressants such as rituximab&#46; In the maintenance phase azathioprine&#44; mycophenolate or rituximab can be used&#46; Immunomodulators prescribed in MS are contraindicated in NMO because they worsen its progression&#46; Accordingly&#44; it is vital to differentiate NMO from MS&#46; Serum anti-AQP4 levels are monitored to control disease activity and the need for treatment&#44; especially rituximab infusions&#46; Anti-QP4&#43; neuritis often has a poorer prognosis because of its greater severity and poorer visual recovery compared to MS and other etiologies&#44; even with an equal degree of damage to the ganglion cell layer in OCT&#46;<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">30</span></a></p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Chronic recurrent optic neuritis &#40;CRION&#41;</span><p id="par0215" class="elsevierStylePara elsevierViewall">In 2003 a clinical series on recurrent ON of presumed autoimmune etiology without clinical or radiological criteria for MS was published under this acronym&#46; CRION was more frequent in individuals of African descent and in women&#46; It occurred with uni or bilateral neuritis associated with pain&#44; in some cases accompanied by uveitis&#46; Systemic study of these patients ruled out granulomatous diseases and revealed the presence of anti-nuclear antibodies &#40;ANA&#41; in one case&#46; Acute phase treatment with intravenous steroids had to be maintained orally for a period of time due to recurrence or relapse&#44; which was one of its diagnostic features&#46;<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3&#44;11</span></a> In the long term&#44; if the maintenance dose of steroids was very high&#44; an immunosuppressant was associated&#46;</p><p id="par0220" class="elsevierStylePara elsevierViewall">Subsequently&#44; the presence of myelin oligocendrocyte autoantibodies &#40;anti-MOG&#41; was detected in some patients with this clinical profile&#46; It is now accepted that some CRION-type neuritis would be part of the spectrum of anti-MOG diseases&#46;<a class="elsevierStyleCrossRef" href="#bib0155"><span class="elsevierStyleSup">31</span></a></p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Optic neuritis with anti-MOG or MOGopathy antibodies<a class="elsevierStyleCrossRefs" href="#bib0160"><span class="elsevierStyleSup">32&#8211;35</span></a></span><p id="par0225" class="elsevierStylePara elsevierViewall">The detection of anti-MOG antibodies in several syndromes with CNS demyelination has produced a conceptual change&#46; Patients with anti-MOG antibodies may develop monophasic &#40;ADEM-acute disseminated encephalomyelitis&#44; seronegative NMO&#44; isolated neuritis&#41; or multiphasic &#40;CRION&#44; seronegative optic neuromyelitis spectrum diseases&#41; CNS demyelinating episodes&#46; These would constitute the disorders with anti-MOG antibodies or mogopathies&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> The myelin glycoprotein of oligodendrocytes is a membrane protein that could be involved in the destruction or phagocytosis of myelin through macrophages&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">34</span></a></p><p id="par0230" class="elsevierStylePara elsevierViewall">There are two peak ages of presentation&#44; although any age can be compromised&#46; The first peak appears in childhood with a predominance of ADEM&#46; The second appears between the third and fourth decade of life where isolated ON and other pictures of the NMO spectrum are more frequent&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">36</span></a> The clinical presentation may be indistinguishable between NMO and MS in some cases&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> The predominance of women over men is not demonstrated and there is conflicting data&#46; It is estimated that it would be responsible for about 14&#37; of NMO&#46;<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">37</span></a> For the moment&#44; diagnostic criteria have not been agreed upon&#46; It is speculated that anti-MOG disorders would be responsible for a large part of CRION-type neuritis&#44; as well as a very frequent cause of ADEM and other demyelinating pathologies such as MS in children&#46;</p><p id="par0235" class="elsevierStylePara elsevierViewall">The visual impairment may manifest itself as an episode of either isolated or recurrent ON&#44; or recurrent after the completion of the initial steroid treatment&#46; Neuritis is retrobulbar or papillitis&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> MRI shows frequent bilateral involvement of the optic nerve with more extensive lesions than in MS and BMN&#46; They predominantly affect the orbital portion and rarely the chiasm and optic bands&#46; Other frequently affected areas are the supratentorial deep white substance and the spinal cord&#46; The patterns vary according to age of presentation and are different from MS and BMN<a class="elsevierStyleCrossRefs" href="#bib0165"><span class="elsevierStyleSup">33&#44;38</span></a> &#40;<a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0240" class="elsevierStylePara elsevierViewall">It is necessary to select the cases that are tributaries of anti-MOG serum antibody determinations to avoid misdiagnosis&#46; In addition&#44; is necessary to conduct a study in validated cell cultures&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">36</span></a> CSF determinations are not diagnostic&#44; although according to some authors they may be sufficient&#46;<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">39</span></a> Exceptionally&#44; they can coexist with other antibodies such as anti-AQP4 and even OCB&#46; If there are no new episodes&#44; anti-MOG antibodies may become negative&#44; reappearing with each recurrence&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a></p><p id="par0245" class="elsevierStylePara elsevierViewall">Treatment is based on high-dose steroids and plasmapheresis in the acute phase&#46; Drugs with CD20 targets and immunosuppressants such as rituximab&#44; ofatumumab&#44; azathioprine&#44; corticoids<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> or tocilizumab<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">40</span></a> have been proposed for the prevention of relapses&#46; Between 50&#8211;80&#37; of patients usually develop sequelae&#46; Early treatment of myelitis&#44; a predictor of the severity of sequelae&#44; is important for prevention<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">33</span></a> &#40;<a class="elsevierStyleCrossRefs" href="#tbl0035">Tables 7 and 8</a>&#41;&#46;</p><elsevierMultimedia ident="tbl0035"></elsevierMultimedia><elsevierMultimedia ident="tbl0040"></elsevierMultimedia><span id="sec0080" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Final considerations</span><p id="par0250" class="elsevierStylePara elsevierViewall">Criteria for the diagnosis and treatment of MS and NMO require frequent and constant updates&#46; In contrast&#44; said criteria still need to be validated and agreed upon for MOGopathies&#46; Clinical classifications are progressively replaced by those based on neuroimmunology and etiopathogenesis&#46; The new antibodies &#40;anti-MOG&#44; anti-AQP4&#41; are being defined with some clinical profiles associated with ON&#46; In other cases such as GlyR &#40;glycine receptor&#41; their pathological significance is still unknown&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">49</span></a></p><p id="par0255" class="elsevierStylePara elsevierViewall">High resolution 3&#8239;Tesla MRI and new generation OCT have allowed a more comprehensive characterization of lesions along the visual pathway&#44; allowing the discovery of types of lesional mechanisms that remained unknown&#46;</p><p id="par0260" class="elsevierStylePara elsevierViewall">Finally&#44; new treatments are available for MS &#40;ocrelizumab&#44; alemtuzumab&#44; siponimod&#8230;&#41;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">50</span></a> and for NMO &#40;inebilizumab&#44; satralizumab&#44; eculizumab&#8230;&#41;&#44;<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">51</span></a> as well as new specific guidelines for the new entities discovered&#46; A new approach to neuroprotection and re-myelinization may change the current paradigm with drugs such as opicinumab&#44; high-dose biotin&#44; trophic factors such as EPO and antioxidants&#46; Ophthalmologists handling this pathology must become familiar with these treatments and their specific possible side effects&#46;</p></span></span><span id="sec0085" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Conflict of interest</span><p id="par0265" class="elsevierStylePara elsevierViewall">No conflict of interests was declared by the authors&#46;</p></span></span>"
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          "titulo" => "Definition"
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          "titulo" => "Physiopathology"
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              "titulo" => "Exploratory findings"
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          "identificador" => "sec0055"
          "titulo" => "Update on the classification of autoimmune ON"
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        13 => array:2 [
          "identificador" => "sec0060"
          "titulo" => "Multiple sclerosis"
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        14 => array:2 [
          "identificador" => "sec0065"
          "titulo" => "Neuromyelitis optica &#40;NMO&#41;"
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        15 => array:2 [
          "identificador" => "sec0070"
          "titulo" => "Chronic recurrent optic neuritis &#40;CRION&#41;"
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        16 => array:3 [
          "identificador" => "sec0075"
          "titulo" => "Optic neuritis with anti-MOG or MOGopathy antibodies"
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              "identificador" => "sec0080"
              "titulo" => "Final considerations"
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          "titulo" => "Conflict of interest"
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          "titulo" => "Acknowledgements"
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          "titulo" => "References"
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      ]
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    "fechaRecibido" => "2020-03-30"
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            0 => "Optic neuritis"
            1 => "Multiple sclerosis &#40;MS&#41;"
            2 => "Neuromyelitis optica &#40;NMO&#41;"
            3 => "MOG-opathy"
            4 => "CRION"
            5 => "Anti-MOG antibody"
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            0 => "Neuritis &#243;pticas"
            1 => "Esclerosis m&#250;ltiple &#40;MS&#41;"
            2 => "Neuromielitis &#243;ptica &#40;NMO&#41;"
            3 => "MOGopat&#237;a"
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        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">The knowledge on demyelinating and autoimmune optic neuropathies has experienced a revolution the last decade since the discovery of anti-aquaporin 4 antibody&#46; Improvements in diagnostic techniques&#44; and the finding of new targets&#44; along with advances in neuroimmunology have led to the detection of antibodies related to demyelinating diseases&#46; A review is presented on the classical and new concepts in optic neuritis&#46; The debate on the classification of demyelinating and autoimmune optic neuritis is presented&#46; Furthermore&#44; the updated diagnostic criteria in multiple sclerosis and neuro-myelitis optics are described&#46; Finally&#44; the latest insights into Myelin Oligodendrocyte Glycoprotein &#40;MOG&#41; disorders and chronic-recurring optic neuropathies &#40;CRION&#41; are highlited&#46;</p></span>"
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        "titulo" => "Resumen"
        "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">El conocimiento sobre las neuropat&#237;as &#243;pticas desmielinizantes y autoinmunes ha experimentado una revoluci&#243;n en la &#250;tima d&#233;cada tras el descubrimiento de los anticuerpos anti-acuaporina 4 &#40;AQP4&#41;&#46; Las mejoras en las t&#233;cnicas diagn&#243;sticas&#44; el descubrimiento de nuevas dianas y el avance de la neuro-inmunolog&#237;a ha permitido la detecci&#243;n de anticuerpos asociados a las enfermedades desmielinizantes&#46; Se presenta una revisi&#243;n de los conceptos cl&#225;sicos y nuevos de las neuritis &#243;pticas desmielinizantes y autoimmunes&#46; Se describe el debate en las constantes reformulaciones de su clasificaci&#243;n&#46; Asimismo se actualizan los criterios diagn&#243;sticos de la esclerosis m&#250;ltiple y de la neuromielitis &#243;ptica&#46; Finalmente&#44; se presentan los nuevos conceptos sobre las MOG-opat&#237;as y las neuropat&#237;as opticas inflamatorias cr&#243;nico-recurrentes &#40;CRION&#41;&#46;</p></span>"
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        "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Please cite this article as&#58; Garc&#237;a Ortega A&#44; Monta&#241;ez Campos FJ&#44; Mu&#241;oz S&#44; Sanchez-Dalmau B&#46; Neuritis &#243;pticas desmielinizantes y autoinmunes&#46; Arch Soc Esp Oftalmol&#46; 2020&#46; <span class="elsevierStyleInterRef" id="intr0005" href="https://doi.org/10.1016/j.oftal.2020.05.010">https&#58;&#47;&#47;doi&#46;org&#47;10&#46;1016&#47;j&#46;oftal&#46;2020&#46;05&#46;010</span></p>"
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          "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Optic Neuromyelitis&#58; Axial flair MRI with post-optic chiasm enhancement&#46; The mark that indicated the lesion has been removed to facilitate its identification&#46;</p>"
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                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Optic neuritis&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Typical&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Atypical&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Age&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Young adult&#44; &#62; female&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Under 12 and over 50 years old&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ancestry&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Northern Europe&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">African&#44; Asian&#44; Native American&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Lateralism&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Unilateral&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Simultaneous bilateral or rapid sequential&#46;&nbsp;\t\t\t\t\t\t\n
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          "en" => "<p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Summary of differential epidemiological characteristics of typical and atypical ON&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p>"
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                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
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                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
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                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">Lateralism&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Unilateral&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Simultaneous bilateral or rapid sequential&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
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                  \t\t\t\t">Pain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Periocular&#44; worsens with eye movements&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Periocular&#46; Variable in intensity from severe to painless Persists beyond 2 weeks&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Vision&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate unilateral loss followed by spontaneous recovery&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Severe loss &#40;worse than 0&#46;1&#41; without improvement&#44; progressive visual loss of more than 2 weeks evolution&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Fundus&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Normal&#44; or mild papilla edema&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Prominent papilla edema with over 1 month of evolution&#46; It can be associated to neuroretinitis and hemorrhages&#46; Vitritis&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Others&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Previous episodes&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Family history&#46; History of neoplasms&#46; Erratic or relapsed response after withdrawal of steroids&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Good response to steroids&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab2354940.png"
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Summary of differential clinical characteristics of typical and atypical ON&#46;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p>"
        ]
      ]
      4 => array:8 [
        "identificador" => "tbl0015"
        "etiqueta" => "Table 3"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0025"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">After a typical ON episode&#44; 38 per cent of patients will develop MS within 10 years&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">First episode of typical ON without other demyelinating alterations in MRI&#44; 22&#37; will develop MS at 10 years&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">First episode of typical ON associated with demyelinating lesions on MRI&#44; the risk of MS is 56&#37; at 10 years&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">In established MS&#44; typical ON appears in 50&#37; at some point in its evolution&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab2354936.png"
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">ON conversion risk in MS&#46;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a></p>"
        ]
      ]
      5 => array:8 [
        "identificador" => "tbl0020"
        "etiqueta" => "Table 4"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0030"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SION&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Simple isolated ON&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">RION&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Recurring ON&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">CRION&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Chronic recurrent ON&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">NMO-ON&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Neuromyelitis optica&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">MSON&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ON associated with MS&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">UCON&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Unclassified ON&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab2354938.png"
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Petzold Classification Autoimmune Optical Neuropathies 2014&#46;<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a></p>"
        ]
      ]
      6 => array:8 [
        "identificador" => "tbl0025"
        "etiqueta" => "Table 5"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0035"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Multiple sclerosis&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Negative anti-AQP4 antibody&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Negative anti-MOG antibody&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Spectrum disorders of optical neuromyelitis&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Positive anti-QA4 antibody&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Negative anti-MOG antibody&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">CNS demyelination associated with anti-MOG &#40;MOGopathies&#41;&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Negative anti-AQP4 antibody&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Positive anti-Mog antibody&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
              "imagenFichero" => array:1 [
                0 => "xTab2354937.png"
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Neuroimmunological classification of demyelinating syndromes in the central nervous system&#46;</p>"
        ]
      ]
      7 => array:8 [
        "identificador" => "tbl0030"
        "etiqueta" => "Table 6"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at0040"
            "detalle" => "Table "
            "rol" => "short"
          ]
        ]
        "tabla" => array:2 [
          "tablatextoimagen" => array:1 [
            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Diagnosis of NMO with IgG-AQP4 &#43;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>1 &#43; nuclear clinic&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>IgG-AQP4&#43; with best available method&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Exclusion of other diagnoses<a class="elsevierStyleCrossRef" href="#tblfn0005">&#42;</a>&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Diagnosis of NMO without IgG-AQP4&#8239;&#43;&#8239;or unknown status&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>2 &#43; nuclear clinic resulting from one or more episodes fulfilling&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>At least one episode of ON&#44; extensive longitudinal transverse myelitis&#44; or post-traumatic area syndrome&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Dissemination in space &#40;2&#8239;&#43;&#8239;nuclear lesions&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>IgG-AQP4- with best available method&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Exclusion of other diagnoses&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">Nuclear panels</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>ON&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Acute myelitis&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Post-traumatic stress syndrome&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Mesencephalic syndrome&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Symptomatic narcolepsy or acute diencephalic syndrome with characteristic MRI lesions&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Symptomatic brain syndrome with characteristic MRI lesions&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">Additional MRI requirements for NMO diagnosis IgG-AQP4-</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>ON with normal MRI or non-specific white substance lesions&#46; Hyperintensive lesions in T2 or enhancement with gadolinium in T1 extending over&#8239;&#62;&#8239;1&#47;2 of the ON pathway or chiasmatic involvement&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Myelitis&#58; spinal cord MRI with lesions affecting 3 or more contiguous vertebral segments &#40;extensive longitudinal transverse myelitis&#41;&#46; OR 3 or&#8239;&#43;&#8239;contiguous segments of focal spinal atrophy with a previous history of myelitis&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Post-traumatic area syndrome&#58; Bulbar dorsal or post-traumatic area injury on brain MRI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleHsp" style=""></span>Mesencephalic syndrome&#58; With periependymal lesions&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
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                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " colspan="4" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">ON as an isolated clinical syndrome</th></tr><tr title="table-row"><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">Clinic&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">MS&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">NMO&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col" style="border-bottom: 2px solid black">MOGopathies&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Pain&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Very often&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Frequent&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Very frequent&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Visual impairment&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Variable&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Severe&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Severe&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Papilla edema&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Absent or not evident&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Absent or not evident&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Frequent and marked&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Bilateral&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Rare simultaneous compromise&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Frequent&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Frequent&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Simultaneous compromise&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Rare&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Myelitis&#44; post-traumatic stress syndrome&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ADEM&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Recurrence&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Progressive&#46; More frequent over eye with previous ON<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">41</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Recurring&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Single-phase or recurrent&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="4" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Laboratory</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Frequently Anti-AQP4 &#43;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Anti-MOG &#43;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">CSF&#58;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">OCB&#43;&#44; mild-moderate pleocytosis&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Possibility OCB &#43;&#44; moderate-intense pleocytosis&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Possibility OCB &#43;&#44; variable pleocytosis&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">Response to treatment</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Corticosteroids only speed up recovery &#40;controversial&#41;&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Poor&#44; requires immediate treatment&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Good&#44; requires immediate treatment&#44; often corticoid-dependent&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">Visual forecast</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Good&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Bad&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Good&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " colspan="4" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"><span class="elsevierStyleBold">Image</span></td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">OCT&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Temporal RNFL-CP and GLC&#47;IPL compromise&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Widespread and severe alteration of RNFL-CP and GLC&#47;IPL&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Widespread involvement of RNFL-CP&#46; Less severe CLM&#47;IPL involvement comparable to MS&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Affecting outer layers by direct damage to M&#252;ller cells&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Brain &#40;MRI&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Periventricular lesions in white substance&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Hemispheric lesions in white substance&#44; dorsal periepidural bulb&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Lesions deep white substance and midbrain&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Optic nerve &#40;MR&#41;</td></tr><tr title="table-row"><td class="td-with-role" title="\n
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                  \t\t\t\t">MS&#58; unilateral compromise&#44; usually retrobulbar MRI shows enhancement at T2&#44; and gadolinium capture at T1&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">NMO&#58; may be more bilaterally affected&#46; Chiasmatic and even ribbon involvement is very suggestive of NMO AQ4&#43;&#46; MRI at T1 with gadolinium shows uptake of posterior half of both optic nerves and chiasm&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">MOGopathies&#58; There may be uni or bilateral involvement&#44; often involving the optic nerve sheath&#44; and perineural tissue&#46; This is quite characteristic&#46; MRI in T1 with gadolinium shows enhancement of both nerves and their perineural tissue&#46; In MOG&#43; cases&#44; it usually affects a greater length of the nerve than in MS-associated neuritis&#46;&nbsp;\t\t\t\t\t\t\n
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          "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Main clinical differential characteristics of ON by MS&#44; NMO and MOGopathies&#46;<a class="elsevierStyleCrossRefs" href="#bib0120"><span class="elsevierStyleSup">24&#44;33&#44;42&#44;43</span></a><span class="elsevierStyleItalic">GLC</span> ganglion cell layer IPL Internal plexiform layer&#46;</p>"
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                  <table border="0" frame="\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Diffuse myeloclastic sclerosis &#40;Schilder&#8217;s Disease&#41;</span><a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">44</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Rare and aggressive of controversial etiology&#46; Preferential compromise of children and young people&#46; It produces progressive neurological deterioration with ON&#44; chiasmitis&#44; papillitis and involvement of cortical association areas&#46; In MRI&#44; large bihemispheric lesions with considerable inflammatory component&#46; It is monophasic and partially responds to treatment with corticoids&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Acute Disseminated Encephalomyelitis &#40;ADEM&#41;</span><a class="elsevierStyleCrossRefs" href="#bib0195"><span class="elsevierStyleSup">39&#44;45</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Mostly affects children&#44; slight preference for males&#46; Appears after previous infectious episode or rarely a vaccination&#46; Multifocal and monophasic clinic&#46; Demyelinating lesions exceeding 2&#8239;mm in both optical nerves up to 15&#37; of cases in ADEMON subtype&#46; Important association to anti-MOG antibodies &#40;33&#8722;66&#37; cases&#41;&#46; Without optic neuritis all published cases are MOG &#43;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Post-vaccine optic neuritis</span><a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1&#44;46</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Isolated ON&#44; starting between days and up to 3 months after exposure to viral and bacterial antigens&#44; especially the flu vaccine&#46; Bilateral &#40;80&#37;&#41;&#44; painful &#40;60&#37;&#41; and with papilla edema &#40;80&#37;&#41;&#46; Good response to steroids &#40;megadose&#41;&#46; In some cases it is necessary to prolong the steroids orally if complete visual recovery is not achieved&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Sarcoidosis-associated optic neuritis</span><a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">47</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Favorite population&#58; women of African descent with papillitis or retrobulbar neuritis&#46; Inflammation is granulomatous&#46; Intraocular inflammation &#40;uveitis&#41; may be accompanied by optic neuromyelitis-like &#40;neuro-sarcoidosis&#41;&#46; Excellent response to steroids&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Post-infectious autoimmune optic neuritis</span><a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Associated with viral and&#44; to a lesser extent&#44; bacterial infections&#44; debuts between 1 and 3 weeks after infectious clinic&#46; Acute&#44; bilateral compromise with papilla edema&#44; or neuroretinitis in children and young adults&#46; Normal neuroimaging despite CSF pleocytosis&#46; Excellent visual prognosis although visual defects and slight residual papillary pallor persist&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t"><span class="elsevierStyleBold">Secondary Optic Neuritis</span></td><td class="td" title="\n
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                  \t\t\t\t">Systemic lupus erythematosus&#44; ANCA granulomatosis&#44; Whipple&#8217;s disease&#44; Sj&#246;gren&#8217;s disease and other systemic vasculopathies and inflammatory diseases can occur with ON&#46;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t">Numerous studies link them to the presence of specific antibodies&#44; especially IgG-AQP4&#46;<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">48</span></a>&nbsp;\t\t\t\t\t\t\n
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                      "doi" => "10.1001/archopht.1991.01080120057025"
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ISSN: 21735794
Original language: English
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