Esophageal Leiomyosarcoma

**Semantic type:** Neoplastic Process

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

**Synonyms:** - Esophagus Leiomyosarcoma - Leiomyosarcoma of Esophagus - Leiomyosarcoma of the Esophagus