A benign smooth muscle neoplasm arising from the vagina. It is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern. The disease is Monarch Disease Ontology identifier MONDO_0001536 (vaginal leiomyoma). Also known as: leiomyoma of the vagina, leiomyoma of vagina, vagina leiomyoma.