9531/0 Meningothelial meningioma


Endotheliomatous meningioma
Syncytial meningioma


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

A benign (WHO grade I) and common variant of meningioma, histopathologically characterized by tumor cell lobules surrounded by thin, collagenous septa. The tumor cells are largely uniform, like normal arachnoid cap cells, with oval nuclei that may show central clearing. Within the lobules, tumour cells appear to form a syncytium 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