Skin Leiomyoma

**Semantic type:** Neoplastic Process

**Definition:** A benign smooth muscle neoplasm arising from the dermal arrector pili muscle or dartos muscle of the genitalia. It is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern.

**Synonyms:** - Cutaneous (Skin) Leiomyoma - Cutaneous Leiomyoma - Leiomyoma Cutis - Leiomyoma of Skin - Leiomyoma of the Skin