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Physical examination showed a protrusion of the lateral wall of the right fossa which joins with the nasal septum. Computerised tomography (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>) revealed an increase in the size of the right maxillary sinus with displacement of the medial wall until it made contact with the septum, compressing the ostiomeatal complex and middle nasal concha. The left maxillary sinus was also found to have increased in size, with mucous thickening and obliteration of the infundibulum of the ostiomeatal complex which was also vertically integrated. This was all compatible with bilateral maxillary <span class="elsevierStyleItalic">pneumosinus dilatans</span> (PSD).</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0010" class="elsevierStylePara elsevierViewall">Endoscopic sinonasal surgery with bilateral medial meatotomy was performed. After this a right nasal fossa synechia was observed, with further surgery being carried out for extirpation. The patient was found to be asymptomatic in later check-ups, with stable bilateral medial meatotomies.</p><p id="par0015" class="elsevierStylePara elsevierViewall">PSD is a rare entity which consists of an abnormal expansion of the sinuses beyond their limits, the content of which is air, normal mucous and where the bony walls are displaced. Its appearance in the maxillary sinus is uncommon, and it may appear bilaterally. There are numerous theories regarding its aetiopathogenesis although none have yet been confirmed. The most common symptoms are facial deformity, proptosis and pressure on one side of the face. The opening of a nasoantral window should be attempted to improve ventilation and draining of the sinuses. However, if facial deformities ensue reconstructive surgery may be necessary.</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Financing</span><p id="par0020" class="elsevierStylePara elsevierViewall">This research received no specific aids from public agencies, the commercial sector or non-profit making entities.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:1 [ 0 => array:2 [ "identificador" => "sec0005" "titulo" => "Financing" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: García-Martín M, Moreno Valor A, Toribio Ruano I. <span class="elsevierStyleItalic">Pneumosinus dilatans</span> maxilar bilateral. Acta Otorrinolaringol Esp. 2021;72:268–269.</p>" ] ] "multimedia" => array:1 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 564 "Ancho" => 1600 "Tamanyo" => 39606 ] ] "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at0005" "detalle" => "Figure " "rol" => "short" ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/21735735/0000007200000004/v1_202107200623/S2173573521000508/v1_202107200623/en/main.assets" "Apartado" => array:4 [ "identificador" => "5869" "tipo" => "SECCION" "en" => array:2 [ "titulo" => "Images in otorhinolaryngology" "idiomaDefecto" => true ] "idiomaDefecto" => "en" ] "PDF" => "https://static.elsevier.es/multimedia/21735735/0000007200000004/v1_202107200623/S2173573521000508/v1_202107200623/en/main.pdf?idApp=UINPBA00004N&text.app=https://www.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2173573521000508?idApp=UINPBA00004N" ]
Journal Information
Vol. 72. Issue 4.
Pages 268-269 (July - August 2021)
Vol. 72. Issue 4.
Pages 268-269 (July - August 2021)
Images in Otorhinolaryngology
Bilateral maxillary Pneumosinus dilatans
Pneumosinus dilatans maxilar bilateral
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Mikel García-Martín
, Ana Moreno Valor, Ignacio Toribio Ruano
Corresponding author
Servicio de Otorrinolaringología, Hospital Perpetuo Socorro, Complejo Hospitalario Universitario de Badajoz, Badajoz, Spain
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