Leiomyoma

**Semantic type:** Neoplastic Process

**Definition:** A well-circumscribed benign neoplasm that arises from smooth muscle cells and is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern.

**Synonyms:** - Benign Smooth Muscle Neoplasm - Benign Smooth Muscle Tumor - Fibroid - Fibroid - Fibroid Neoplasm - Fibroid Tumor - LEIOMYOMA, BENIGN - Leiomyoma, NOS - Leiomyomatous Neoplasm - Leiomyomatous Tumor - Leiomyomatous Tumor - fibroid - leiomyoma