disease has location leiomyoma dermis tumor leiomyoma cutis A benign smooth muscle neoplasm arising from the arrector pili muscle, tunica media of blood vessels, and dartos muscle of the genitalia. It is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern. DOID:5132 MONDO:0003291 NCIT:C4482 SCTID:254767008 UMLS:C0346064 cutaneous (skin) leiomyoma cutaneous leiomyoma leiomyoma cutis leiomyoma of skin leiomyoma of the skin leiomyoma of zone of skin skin leiomyoma zone of skin leiomyoma benign neoplasm of skin zone of skin