Sclerosing Epithelioid Fibrosarcoma

**Semantic type:** Neoplastic Process

**Definition:** A well-circumscribed malignant fibroblastic neoplasm that usually arises from the soft tissue. It is characterized by the presence of nests of malignant epithelioid fibroblasts and sclerotic collagen stroma formation.

**Synonyms:** - SEF - Sclerosing epithelioid fibrosarcoma