title: Evolution of malignant cerebellar astrocytoma at the site of a treated medulloblastoma: report of two cases.
abstract: The authors report two unusual cases in which a malignant astrocytoma developed at the site of the excision of an earlier medulloblastoma. While the precise etiology of these astrocytic tumours was unproven, theories of the origins of the second tumours, particularly in relation to the basic nature of medulloblastomas, are discussed.
authors.affiliation: Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Nakamizo
authors.forename: S
authors.initials: S
authors.lastname: Nishio
authors.forename: T
authors.initials: T
authors.lastname: Inamura
authors.forename: H
authors.initials: H
authors.lastname: Koga
authors.forename: K
authors.initials: K
authors.lastname: Yamabe
authors.forename: H
authors.initials: H
authors.lastname: Kuba
authors.forename: T
authors.initials: T
authors.lastname: Matsushima
authors.forename: M
authors.initials: M
authors.lastname: Fukui
mesh_terms: D000328:Adult; D001254:Astrocytoma / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D002528:Cerebellar Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy / Q000556:secondary* / Q000601:surgery*; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008297:Male; D008527:Medulloblastoma / Q000188:drug therapy / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery*; D016609:Neoplasms, Second Primary / Q000175:diagnosis* / Q000473:pathology