title: Primitive neuroectodermal tumor of the leptomeninges.
abstract: Primitive neuroectodermal tumor (PNET) without an obvious intraparenchymal mass lesion and with diffuse spread in the subarachnoid space is rare. We report such a rare case and discuss the computed tomography (CT) and magnetic resonance (MR) features.
authors.affiliation: Department of Neurosurgery, Yamaguchi University School of Medicine, Ube, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Fujii
authors.forename: T
authors.initials: T
authors.lastname: Orita
authors.forename: T
authors.initials: T
authors.lastname: Nishizaki
authors.forename: H
authors.initials: H
authors.lastname: Aoki
authors.forename: K
authors.initials: K
authors.lastname: Tanaka
mesh_terms: D000293:Adolescent; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed