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Recently Established Entities of Central Nervous System Tumors: Review of Radiological Findings

Amemiya, Shiori MD; Shibahara, Junji PhD; Aoki, Shigeki PhD; Takao, Hidemasa MD; Ohtomo, Kuni PhD

Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e31814ce981
Neuroradiology: Review Article

Several new entities of central nervous system tumors have been established in the past decade. By reviewing our cases and previous reports, we describe 4 neuronal and mixed neuronal-glial tumors (papillary glioneuronal tumor, extraventricular neurocytoma, rosette-forming glioneuronal tumor of the fourth ventricle, and glioneuronal tumor with neuropil-like islands), angiocentric glioma and papillary tumor of the pineal region, with an attempt to explain the pathological basis of the imaging features.

Author Information

From the Departments of *Radiology and †Pathology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.

Received for publication June 21, 2007; accepted June 21, 2007.

Reprints: Shiori Amemiya, MD, Department of Radiology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan (e-mail:;

Copyright © 2008 Wolters Kluwer Health, Inc. All rights reserved.