title: Intraventricular, cystic, atypical meningioma.
abstract: A 37-year-old male presented with a very rare cystic meningioma in the trigone of the left lateral ventricle. Neurological examination revealed mild conduction aphasia and right hemisensory disturbance. Computed tomography and magnetic resonance imaging showed a solid, enhancing tumor in the left trigone which had multiple cystic components located anteriorly and superiorly. The tumor was totally resected via a parietal, transventricular approach. Histological examination revealed an atypical meningioma with cellular pleomorphism and prominent nucleoli. Both the solid component and the cyst wall consisted of tumor cells.
authors.affiliation: Department of Neurosurgery, Juntendo University Izunagaoka Hospital, Shizuoka.
authors.forename: K
authors.initials: K
authors.lastname: Takara
authors.forename: K
authors.initials: K
authors.lastname: Cho
authors.forename: K
authors.initials: K
authors.lastname: Mori
authors.forename: M
authors.initials: M
authors.lastname: Maeda
mesh_terms: D000328:Adult; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008579:Meningioma / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed