title: Cystic schwannoma of the brainstem.
abstract: A rare case of cystic schwannoma occurring in the brainstem in the absence of von Recklinghausen's disease is reported. This appears to be the first case in the literature of a cystic schwannoma ever described in this location. While the exact origin of this tumor in this unusual location remains uncertain, different hypotheses are discussed and the possible origin of this tumor from perivascular elements in the brainstem is seriously considered.
authors.affiliation: Department of Neurosurgery, Centre Hospitalier Universitaire de Sherbrooke, Québec, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Ladouceur
authors.forename: D
authors.initials: D
authors.lastname: Bergeron
authors.forename: J B
authors.initials: JB
authors.lastname: Lamarche
authors.forename: L
authors.initials: L
authors.lastname: Lamontagne
mesh_terms: D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D001933:Brain Stem; D002170:Canada; D003560:Cysts / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000000981:diagnostic imaging