Solitary Fibrous Tumor

**Semantic type:** Neoplastic Process

**Definition:** A localized neoplasm of probable fibroblastic derivation. It is characterized by the presence of round to spindle-shaped cells, hylanized stroma formation, thin-walled branching blood vessels, and thin bands of collagen.

**Synonyms:** - Hemangiopericytoma - Localized Fibrous Mesothelioma - Localized Fibrous Tumor - Localized fibrous tumor - SFT - Solitary fibrous tumor - Submesothelial Fibroma