Definition

A rare, type of cancer that forms in fibrous (connective) tissue. Sclerosing epithelioid fibrosarcoma is a slow growing tumor, but may recur (come back) and spread to other parts of the body many years after treatment. It usually occurs in middle-aged or older adults, and is rare in children and adolescents. Sclerosing epithelioid fibrosarcoma is a type of soft tissue sarcoma.