title: Review of cerebellopontine angle medulloblastoma.
abstract: Cerebellopontine angle (CPA) medulloblastomas (MB) are rare lesions with few cases previously described in the literature. We report two further cases of CPA MB. The patients were a 22-year-old man and a 26-year-old woman with a mass developing in the CPA. The preoperative radiological diagnosis was vestibular schwannoma in the first case and petrosal meningioma in the second case. The patients were operated on through a retrosigmoid approach. The intraoperative findings revealed an intra-axial tumour and the histological diagnosis was classic type of MB in both cases. We review the literature and discuss pathological and radiological features and possible pathogenesis of CPA MB, underlining the necessity to consider MB in the differential diagnosis of CPA lesions.
authors.affiliation: Department of Neurosurgery, San Raffaele Scientific Institute, Vita-Salute University, Milan, Italy. spina.alfi o@hsr.it
authors.forename: A
authors.initials: A
authors.lastname: Spina
authors.forename: N
authors.initials: N
authors.lastname: Boari
authors.forename: F
authors.initials: F
authors.lastname: Gagliardi
authors.forename: A
authors.initials: A
authors.lastname: Franzin
authors.forename: M R
authors.initials: MR
authors.lastname: Terreni
authors.forename: P
authors.initials: P
authors.lastname: Mortini
mesh_terms: D000328:Adult; D002528:Cerebellar Neoplasms / Q000175:diagnosis* / Q000601:surgery; D002530:Cerebellopontine Angle; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008527:Medulloblastoma / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D055815:Young Adult