Central neurocytoma expressing characteristics of ependymal differentiation: electron microscopic findings of two cases.
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.
Shimura
Toshiro
T
Department of Neurosurgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan. t-simura@nms.ac.jp
Mori
Osamu
O
Kitamura
Takayuki
T
Kobayashi
Shiro
S
Sanno
Naoko
N
Teramoto
Akira
A
Ohaki
Yoshiharu
Y
Sugisaki
Yuichi
Y
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*