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(B) <span class="elsevierStyleSup">99m</span>Tc-EDDA/HYNIC-Tyr3-octreotide planar scan shows the breast cancer (vertical arrow) and adenopathy (small arrow) and (C) SPECT/CT images show the breast neoplasm (top) and the adenopathy (bottom), both with moderate radiotracer uptake. (D) Planar lymphoscintigraphy (top) and SPECT/CT imaging (bottom) showing the sentinel lymph node with slight uptake of <span class="elsevierStyleSup">99m</span>Tc Nanocoll.</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Alejandro Andrés Gracia, Paula Razola-Alba, Leticia Tardín-Cardoso, Ely Francisco Rambalde-Pacheco, Enrique Prats-Rivera, Javier Banzo-Marraco" "autores" => array:6 [ 0 => array:2 [ "nombre" => "Alejandro" "apellidos" => "Andrés Gracia" ] 1 => array:2 [ "nombre" => "Paula" "apellidos" => "Razola-Alba" ] 2 => array:2 [ "nombre" => "Leticia" "apellidos" => "Tardín-Cardoso" ] 3 => array:2 [ "nombre" => "Ely Francisco" "apellidos" => "Rambalde-Pacheco" ] 4 => array:2 [ "nombre" => "Enrique" "apellidos" => "Prats-Rivera" ] 5 => array:2 [ "nombre" => "Javier" "apellidos" => "Banzo-Marraco" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S2253654X13001819" "doi" => "10.1016/j.remn.2013.09.007" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253654X13001819?idApp=UINPBA00004N" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253808914000925?idApp=UINPBA00004N" "url" => "/22538089/0000003300000004/v2_201407090014/S2253808914000925/v2_201407090014/en/main.assets" ] "itemAnterior" => array:19 [ "pii" => "S2253808914000949" "issn" => "22538089" "doi" => "10.1016/j.remnie.2014.06.009" "estado" => "S300" "fechaPublicacion" => "2014-07-01" "aid" => "543" "copyright" => "Elsevier España, S.L. and SEMNIM" "documento" => "article" "crossmark" => 0 "subdocumento" => "sco" "cita" => "Rev Esp Med Nucl Imagen Mol. 2014;33:247-8" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 379 "formatos" => array:2 [ "HTML" => 282 "PDF" => 97 ] ] "en" => array:11 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Interesting image</span>" "titulo" => "Synchronous bilateral bronchial carcinoid diagnosed with combined dual tracer (<span class="elsevierStyleSup">18</span>F-FDG and <span class="elsevierStyleSup">68</span>Ga-DOTATOC) PET/CT scans" "tienePdf" => "en" "tieneTextoCompleto" => "en" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "247" "paginaFinal" => "248" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Tumor carcinoide bronquial bilateral diagnosticado mediante el uso combinado de PET-TC con doble trazador (<span class="elsevierStyleSup">18</span>F-FDG y <span class="elsevierStyleSup">68</span>Ga-DOTATOC)" ] ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0010" "etiqueta" => "Fig. 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 1383 "Ancho" => 1880 "Tamanyo" => 477903 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleSup">18</span>F-FDG PET (A and B) and <span class="elsevierStyleSup">68</span>Ga-DOTATOC PET scan (C and D) showing increased tracer uptake in both pulmonary lesions (SUVmax of 5.2 using <span class="elsevierStyleSup">18</span>F-FDG and 6.8 using <span class="elsevierStyleSup">68</span>Ga-DOTATOC for the right lesion and 4.2 using <span class="elsevierStyleSup">18</span>F-FDG and 27 using <span class="elsevierStyleSup">68</span>Ga-DOTATOC for the left lesion). Hematoxylin and eosin stain (E) and immunohistochemistry positive for chromogranin (F) demonstrated the presence of a bilateral pulmonary neuroendocrine tumor.</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "M. Paci, F. Lococo, C. Rapicetta, M. Roncali, A. Cavazza, G. Treglia, G. Sgarbi" "autores" => array:7 [ 0 => array:2 [ "nombre" => "M." "apellidos" => "Paci" ] 1 => array:2 [ "nombre" => "F." "apellidos" => "Lococo" ] 2 => array:2 [ "nombre" => "C." "apellidos" => "Rapicetta" ] 3 => array:2 [ "nombre" => "M." "apellidos" => "Roncali" ] 4 => array:2 [ "nombre" => "A." "apellidos" => "Cavazza" ] 5 => array:2 [ "nombre" => "G." "apellidos" => "Treglia" ] 6 => array:2 [ "nombre" => "G." "apellidos" => "Sgarbi" ] ] ] ] ] "idiomaDefecto" => "en" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S2253654X13001601" "doi" => "10.1016/j.remn.2013.08.007" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253654X13001601?idApp=UINPBA00004N" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253808914000949?idApp=UINPBA00004N" "url" => "/22538089/0000003300000004/v2_201407090014/S2253808914000949/v2_201407090014/en/main.assets" ] "en" => array:15 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Interesting image</span>" "titulo" => "<span class="elsevierStyleSup">18</span>F-FDG PET/MR in herpes simplex virus encephalitis: A case study" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "249" "paginaFinal" => "250" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "O. 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"apellidos" => "Travascio" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 4 => array:3 [ "nombre" => "R." "apellidos" => "Floris" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 5 => array:3 [ "nombre" => "G." "apellidos" => "Simonetti" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] ] "afiliaciones" => array:2 [ 0 => array:3 [ "entidad" => "Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "IRCCS Neuromed, Pozzilli, Italy" "etiqueta" => "b" "identificador" => "aff0010" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "<span class="elsevierStyleSup">18</span>F-FDG PET/RM en la encefalitis por virus herpes simple: un caso clínico" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0005" "etiqueta" => "Fig. 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1720 "Ancho" => 1000 "Tamanyo" => 286398 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Axial <span class="elsevierStyleSup">18</span>F-FDG PET slices showing a wide reduction of glucose metabolism at a cortical level in the left hemisphere (a, b). A reduced tracer uptake is detectable in left thalamus and basal ganglia (arrow in a). A focal area of <span class="elsevierStyleSup">18</span>F-FDG increased uptake is detectable in the left temporal lobe (arrow in b). T1-weighted MR axial slices (c, d) showing the morphological correlate of the PET findings (arrows in c and d, see text). Co registered PET/MR axial views are shown in e and f.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Encephalitis usually presents different patterns of 2-deoxy-2-(<span class="elsevierStyleSup">18</span>F) fluoro-<span class="elsevierStyleSmallCaps">d</span>-glucose (<span class="elsevierStyleSup">18</span>F-FDG) distribution<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> and generally manifests itself on <span class="elsevierStyleSup">18</span>F-FDG areas of hypermetabolism but large areas of hypometabolism can be detected as well.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> To date, the findings of one of the main studies performed on patients with encephalitis suggest that, in the acute phase, the <span class="elsevierStyleSup">18</span>F-FDG hypermetabolism can be the result of active inflammation, but it is necessarily to exclude ictal seizure activity as a possible cause of hypermetabolism for a correct interpretation of the PET findings.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> On the other hand, <span class="elsevierStyleSup">18</span>F-FDG hypometabolism may represent one of the chronic sequelae of encephalitis as a consequence of neuron loss due to the inflammatory process.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> In agreement with the evidences on <span class="elsevierStyleSup">18</span>F-FDG PET in seizure disorders, Lee et al. concluded that when the electroencephalogram is negative the hypermetabolism is most likely associated with the inflammatory process characteristic of encephalitis regardless of exact etiology.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">A 72-years-old man with a 3-year history of mild memory loss and cognitive impairment as reported by relatives, was referred to our center for a further worsening of a neurologic symptomatology characterized by spatial-temporal disorientation, anomic and mixed aphasia, apraxia and cognitive impairment in absence epileptic seizures and a 2 months history of fever (temperature at admission 37.9<span class="elsevierStyleHsp" style=""></span>°C). The diagnosis of herpes simplex virus (HSV) encephalitis was confirmed by laboratory testing and cerebrospinal fluid PCR. The patient underwent a brain contrast enhanced Magnetic Resonance (ceMR) and an <span class="elsevierStyleSup">18</span>F-FDG PET/CT after one day from the ceMR scan.</p><p id="par0015" class="elsevierStylePara elsevierViewall">In agreement with a previous similar report,<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> the brain PET/MR images (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>) obtained by means of Mimvista software (MIMvista Corp., Cleveland, OH) showed a wide hypometabolism of the left temporal, parietal and occipital lobe(a, b) in agreement with the neurological symptoms of the patient. This metabolic pattern is widely recognized as a typical finding in progressive dementia (which symptoms are similar to those shown by our patient and, generally, in patients with dementia associated with infectious diseases)<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> and corresponded to a white matter-cortical wide hyperintensity areas in the T2-weighted MR images and hyperintense areas in T1-weighted MR images, likely necrotic-hemorrhagic (arrowhead in c and d) that were overlapped to a markedly reduced <span class="elsevierStyleSup">18</span>F-FDG uptake (c,d,e,f).<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">PET images showed a reduced left thalamic and striatal <span class="elsevierStyleSup">18</span>F-FDG uptake(arrowhead in a) that did not correspond to any pathological ceMR finding (c) and probably determined by a large ipsilateral cortical necrosis resulting in a synaptic loss.</p><p id="par0025" class="elsevierStylePara elsevierViewall">A focal area of increased glucose uptake in the inferior left temporal gyrus (arrowhead in b) corresponded with a focal gyral enhancement in post-contrast-T1w ceMR images (arrowhead in d, f); this finding has been interpreted as a focal inflammation with local meningeal vasodilatation (as in the case of active viral replication) that could explain the mild fever onset in our patient.<a class="elsevierStyleCrossRefs" href="#bib0005"><span class="elsevierStyleSup">1,3</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">As in the case of our patient, viral encephalitides are sometimes insidious and, although typically presenting as acute encephalitis, do present with more gradual behavioral and mental status changes with frequent exacerbations.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">Together with clinical data (i.e. the presence of seizure activity and other conditions) (<span class="elsevierStyleItalic">1</span>) the combination of <span class="elsevierStyleSup">18</span>F FDG PET and MR examination may add important data for a better overall clinical evaluation (identification of active foci), disease prognosis (functional involvement of other cortical and sub cortical structures without morphological abnormalities), treatment and follow-up of patients affected by herpetic encephalitis.</p></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2013-09-03" "fechaAceptado" => "2013-10-18" "multimedia" => array:1 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Fig. 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1720 "Ancho" => 1000 "Tamanyo" => 286398 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Axial <span class="elsevierStyleSup">18</span>F-FDG PET slices showing a wide reduction of glucose metabolism at a cortical level in the left hemisphere (a, b). A reduced tracer uptake is detectable in left thalamus and basal ganglia (arrow in a). A focal area of <span class="elsevierStyleSup">18</span>F-FDG increased uptake is detectable in the left temporal lobe (arrow in b). T1-weighted MR axial slices (c, d) showing the morphological correlate of the PET findings (arrows in c and d, see text). Co registered PET/MR axial views are shown in e and f.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0005" "bibliografiaReferencia" => array:3 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "FDG-PET findings in patients with suspected encephalitis" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:5 [ 0 => "B.Y. Lee" 1 => "A.B. Newberg" 2 => "D.S. Liebeskind" 3 => "J. Kung" 4 => "A. Alavi" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:6 [ "tituloSerie" => "Clin Nucl Med" "fecha" => "2004" "volumen" => "29" "paginaInicial" => "620" "paginaFinal" => "625" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/15365433" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib0010" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Chronic sequelae of herpes simplex encephalitis demonstrated on interictal F-18 FDG PET/CT" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "K.K. Wong" 1 => "B. Tolia" 2 => "N. Bohnen" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1097/RLU.0b013e318170d4e0" "Revista" => array:6 [ "tituloSerie" => "Clin Nucl Med" "fecha" => "2008" "volumen" => "33" "paginaInicial" => "443" "paginaFinal" => "444" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/18496462" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0015" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Diffusion-weighted MRI in herpes simplex encephalitis: a report of three cases" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "W. Kuker" 1 => "T. Nagele" 2 => "F. Schmidt" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1007/s00234-003-1145-3" "Revista" => array:6 [ "tituloSerie" => "Neuroradiology" "fecha" => "2004" "volumen" => "46" "paginaInicial" => "122" "paginaFinal" => "125" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/14747879" "web" => "Medline" ] ] ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/22538089/0000003300000004/v2_201407090014/S2253808914000901/v2_201407090014/en/main.assets" "Apartado" => array:4 [ "identificador" => "7927" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Interesting images" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/22538089/0000003300000004/v2_201407090014/S2253808914000901/v2_201407090014/en/main.pdf?idApp=UINPBA00004N&text.app=https://www.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2253808914000901?idApp=UINPBA00004N" ]
Journal Information
Interesting image
18F-FDG PET/MR in herpes simplex virus encephalitis: A case study
18F-FDG PET/RM en la encefalitis por virus herpes simple: un caso clínico