(Pathology) a tumour of the meninges of the brain that grows slowly and is usually benign, although it can be malignant Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014 ...
(fibroblastic), microcystic, transitional, psammomatous, angiomatous (includes haemangioblastic and angioblastic), secretory, metaplastic and lymphoplasmacyte-rich histotypes; (b) atypical (grade II) meningiomas including clear cell and chordoid subtypes; and (c) anaplastic (grade III) meningiomas ...
WHO grade 2 due to aggressiveness 20 - 60% chance of recurrence even with gross total resection More common in younger patients (mean age 29 years) Predilection for cauda equina and cerebellopontine areas Sites Predilection for CP angle and cauda equina ...