title: Adult medulloblastoma and the "dural-tail" sign: rare mimic of a posterior petrous meningioma.
abstract: The authors describe clinical and radiological features of a 32-year-old male patient with a posterior fossa lesion. The radiological characteristics resembled an extra-axial lesion; a meningioma, with attachment to the tentorium and petrous bone. The histological diagnosis was classical medulloblastoma. We review literature of this atypical presentation of medulloblastoma and "dural-tail" sign, which can be associated with other benign or malignant lesions. The role of magnetic resonance spectroscopy in the diagnosis of primitive neuroectodermal tumors is discussed.
authors.affiliation: Department of Neurosurgery, Sri Satya Sai Institute of Higher Medical Sciences (SSSIHMS), EPIP Area, Whitefield, Bangalore-560066, India. sunilvf@gmail.com
authors.forename: Sunil V
authors.initials: SV
authors.lastname: Furtado
authors.forename: Prasanna K
authors.initials: PK
authors.lastname: Venkatesh
authors.forename: Ravi
authors.initials: R
authors.lastname: Dadlani
authors.forename: Kalyan
authors.initials: K
authors.lastname: Reddy
authors.forename: A S
authors.initials: AS
authors.lastname: Hegde
mesh_terms: D000328:Adult; D002528:Cerebellar Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D002530:Cerebellopontine Angle / Q000473:pathology* / Q000601:surgery; D004388:Dura Mater / Q000473:pathology* / Q000601:surgery; D006801:Humans; D015192:Infratentorial Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D008527:Medulloblastoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008579:Meningioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D010579:Petrous Bone; D011859:Radiography; D016896:Treatment Outcome