Central Nervous System Solitary Fibrous Tumor, Grade 3

**Semantic type:** Neoplastic Process

**Definition:** A solitary fibrous tumor that arises from the central nervous system. It most often corresponds to the tumor previously diagnosed as anaplastic hemangiopericytoma.

**Synonyms:** - CNS Solitary Fibrous Tumor, Grade 3 - CNS Solitary Fibrous Tumor/Hemangiopericytoma, Grade 3 - Central Nervous System Anaplastic Hemangiopericytoma - Central Nervous System Malignant Hemangiopericytoma - Central Nervous System Solitary Fibrous Tumor/Hemangiopericytoma, Grade 3 - Solitary fibrous tumor/hemangiopericytoma Grade 3 (CNS)