Colon Leiomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An aggressive malignant smooth muscle neoplasm that arises from the colon. It is characterized by a proliferation of neoplastic spindle cells.

**Synonyms:** - Colonic Leiomyosarcoma - Leiomyosarcoma of Colon - Leiomyosarcoma of the Colon