9393/3 Papillary ependymoma


Definitions

Tumours of the central nervous system
ICD-O-3 topography code: C70, C71 and C72
ICD10: C71
           

A rare histological variant of ependymoma, characterized by well formed papillae. Tumor cell processes abutting capillaries are usually GFAP-positive. Differential diagnoses include choroid plexus papilloma, papillary meningioma and metastatic papillary carcinomas 1
 
Louis DN, Ohgaki H, Wiestler OD, Cavenee WK (Eds.)
WHO Classification of Tumours of the Central Nervous System.
4th Edition
International Agency for Research on Cancer: Lyon 2007



.