Gastric Leiomyoma

**Semantic type:** Neoplastic Process

**Definition:** A rare benign smooth muscle neoplasm that arises from the wall of the stomach and is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern. Unlike gastrointestinal stromal tumors, gastric leiomyomas are by definition negative for CD34 and CD117 (C-KIT).

**Synonyms:** - Leiomyoma of Stomach - Leiomyoma of the Stomach