Leiomyoma of the urethra: report of 3 cases of a rare entity.

Leiomyomas are benign tumors of smooth muscle origin that can occur at any location in the urinary tract. Although rare, they are the most common mesenchymal neoplasms of the urethra. They are more frequent in females than in males. Only 3 cases of leiomyomas of the male urethra and multiple cases in the female have been reported in the English-language literature. We report 2 additional cases of leiomyoma of the male urethra and 1 more case of the female urethra and describe their differential diagnoses and management.