leiomyosarcoma MESH:D007890 A smooth muscle cancer that can arise almost anywhere in the body, but is most common in the uterus, abdomen, or pelvis. UMLS_CUI:C0023269 SNOMEDCT_US_2020_03_01:443719001 GARD:6880 disease_ontology DOID:1967 NCI:C3158 Leiomyosarcomas smooth muscle cancer