title: Cystic angiomatous meningioma in the cerebellopontine angle mimicking hemangioblastoma.
abstract: We hereby report an extremely unusual case of cystic angiomatous meningioma in the CPA region in a 58-year-old male patient. He presented with complaints of headache, repeated episodes of vomiting and increasing unsteadiness of gait. Neuroimaging showed a large multicystic left-sided tentorial tumor projecting into the cerebellum and CPA with contrast-enhancing peripheral solid rim. He underwent a left retromastoid craniectomy and total excision of the tumor. Histopathology revealed an angiomatous meningioma with predominant microvascular component and extensive cystic changes. Immunopositivity for epithelial membrane antigen (EMA), vimentin and S-100 protein proved vital in excluding a hemangioblastoma.
authors.affiliation: Department of Pathology, Armed Forces Medical College, Pune, India. debprabal@indiatimes.com
authors.forename: Prabal
authors.initials: P
authors.lastname: Deb
authors.forename: Hirdesh
authors.initials: H
authors.lastname: Sahni
authors.forename: Harjinder Singh
authors.initials: HS
authors.lastname: Bhatoe
mesh_terms: D002530:Cerebellopontine Angle / Q000473:pathology*; D018325:Hemangioblastoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008579:Meningioma / Q000473:pathology*; D008875:Middle Aged