title: [Extracranial meningioma presenting as a polyp of the outer ear canal].
abstract: Meningiomas are the most frequent benign intracranial tumor. Up to 20% of these neoplasms may eventually extend beyond the skull, particularly when tumor spread affects the temporal bone. We report a clinicopathological observation of an extracranial meningothelial meningioma that was diagnosed morphologically using immunohistochemical techniques. The tumor presented as polyp in the ear canal of a 70-year-old woman who had a history of ear disease and seizures and was under medical treatment. The growth was associated with a right temporal lobe tumor involving the petrosal bone that had been detected 6 years earlier on computed axial tomography.
authors.affiliation: Servicio de Anatomía Patológica, Hospital Universitario La Fe, Valencia, España.
authors.forename: F J
authors.initials: FJ
authors.lastname: Vera-Sempere
authors.forename: J
authors.initials: J
authors.lastname: Jaén
authors.forename: J V
authors.initials: JV
authors.lastname: Salom
authors.forename: J
authors.initials: J
authors.lastname: Cogollos
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004424:Ear Canal / Q000000981:diagnostic imaging* / Q000473:pathology*; D004428:Ear Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008579:Meningioma / Q000000981:diagnostic imaging*; D011127:Polyps / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed
vernacular_title: Meningioma extracraneal que se manifiesta como pólipo de conducto auditivo externo.