Central Nervous System Mesenchymal, Non-Meningothelial Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant mesenchymal neoplasm originating in the central nervous system or the meninges and showing fibrous, fibrohistiocytic, adipose, myoid, endothelial, chondroid or osseous, but not meningothelial differentiation. Depending on the histological features and clinical behavior of these neoplasms, their grade ranges from benign (WHO grade I) to highly malignant (WHO grade IV). (Adapted from WHO)

**Synonyms:** - CNS Soft Tissue Neoplasm - CNS Soft Tissue Tumor - Central Nervous System Mesenchymal, Non-Meningothelial Tumor - Central Nervous System Soft Tissue Neoplasm - Central Nervous System Soft Tissue Tumor - Mesenchymal Non-Meningothelial Tumor of the Central Nervous System - Mesenchymal, Non-Meningothelial Tumor of CNS - Mesenchymal, Non-Meningothelial Tumor of Central Nervous System - Mesenchymal, Non-Meningothelial Tumor of the CNS - Soft Tissue Neoplasm of CNS - Soft Tissue Neoplasm of Central Nervous System - Soft Tissue Neoplasm of the CNS - Soft Tissue Neoplasm of the Central Nervous System - Soft Tissue Tumor of CNS - Soft Tissue Tumor of Central Nervous System - Soft Tissue Tumor of the CNS - Soft Tissue Tumor of the Central Nervous System