Central Nervous System Solitary Fibrous Tumor, Grade 1

**Semantic type:** Neoplastic Process

**Definition:** A solitary fibrous tumor that arises from the central nervous system. It corresponds most often to the collagenous and low cellularity spindle cell tumor which was diagnosed as central nervous system solitary fibrous tumor in the past.

**Synonyms:** - CNS Solitary Fibrous Tumor, Grade 1 - CNS Solitary Fibrous Tumor/Hemangiopericytoma, Grade 1 - Central Nervous System Solitary Fibrous Tumor - Central Nervous System Solitary Fibrous Tumor/Hemangiopericytoma, Grade 1 - Solitary fibrous tumor/hemangiopericytoma Grade 1 (CNS)