Source:http://linkedlifedata.com/resource/umls/id/C0238440
NCI: A rare benign smooth muscle neoplasm arising from the wall of the stomach. It 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).