label: Meningeal Neoplasm
label_lc: meningeal neoplasm
description: A benign or malignant neoplasm that affects the meninges.  The majority of the neoplasms arise from meningothelial cells and are called meningiomas.  Non-meningothelial cell neoplasms include mesenchymal, non-meningothelial tumors, hemangiopericytomas, and melanocytic lesions.