title: An atypical case of intracerebral schwannoma.
abstract: We report a case of intracerebral cystic schwannoma in the temporal fossa manifested as a gradually worsening headache in a 49-years-old woman. Computed Tomography (CT) and magnetic resonance imaging (MRI) showed a left temporal partly cystic, partly solid mass. The preoperative diagnosis was astrocytoma or glioblastoma multiforme (GBM), but microscopic examination of the mass showed the characteristic pattern with cellular Antony A component. Immunohistochemically, the tumor was positive for S-100 protein. These findings are consistent with a schwannoma. Intracerebral schwannomas not related to cranial nerves are rare and most reported cases involved young patients.
authors.affiliation: Department of Radiology, Prince Sultan Medical Millitary City, Riyadh, Saudi Arabia.
authors.forename: Abdulrahman Abdullah
authors.initials: AA
authors.lastname: AlBatly
authors.affiliation: Department of Radiology, Prince Sultan Medical Millitary City, Riyadh, Saudi Arabia.
authors.forename: Reem Seraj
authors.initials: RS
authors.lastname: Zakzouk
authors.affiliation: Department of Radiology, Prince Sultan Medical Millitary City, Riyadh, Saudi Arabia.
authors.forename: Ali Khalaf
authors.initials: AK
authors.lastname: Alhaidey
mesh_terms: D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis / Q000473:pathology*; D014057:Tomography, X-Ray Computed
keywords: Intracerebral schwannoma; glioblastoma multiforme; immunohistochemically