Small Intestinal Leiomyosarcoma

**Semantic type:** Neoplastic Process

**Definition:** An aggressive malignant smooth muscle neoplasm, arising from the small intestine. It is characterized by a proliferation of neoplastic spindle cells.

**Synonyms:** - Leiomyosarcoma of Small Bowel - Leiomyosarcoma of Small Intestine - Leiomyosarcoma of the Small Bowel - Leiomyosarcoma of the Small Intestine - Small Bowel Leiomyosarcoma - Small Intestine Leiomyosarcoma - Small Intestine Leiomyosarcoma