title: Central neurocytoma expressing characteristics of ependymal differentiation: electron microscopic findings of two cases.
abstract: We describe two cases of central neurocytoma in the lateral ventricle. Ultrastructural examination showed occasional cilia mixed in with sparse dense core vesicles and thin tumor cell processes containing parallel microtubules. These central neurocytomas revealed evidence of ependymal differentiation. We propose that central neurocytoma originates from multiple differentiation from the germinal matrix cell layer.
authors.affiliation: Department of Neurosurgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan. t-simura@nms.ac.jp
authors.forename: Toshiro
authors.initials: T
authors.lastname: Shimura
authors.forename: Osamu
authors.initials: O
authors.lastname: Mori
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kitamura
authors.forename: Shiro
authors.initials: S
authors.lastname: Kobayashi
authors.forename: Naoko
authors.initials: N
authors.lastname: Sanno
authors.forename: Akira
authors.initials: A
authors.lastname: Teramoto
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Ohaki
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Sugisaki
mesh_terms: D000328:Adult; D002454:Cell Differentiation; D002551:Cerebral Ventricle Neoplasms / Q000209:etiology / Q000648:ultrastructure*; D004805:Ependyma / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D018306:Neurocytoma / Q000209:etiology / Q000648:ultrastructure*