Leiomyoma in a female urethral diverticulum.

Neoplasms arising within urethral diverticula are rare. It is important to know if a diverticulum is filled by tumor, but traditional diagnostic methods, such as voiding cystourethrography, cannot detect a tumor or diverticulum, as in our case. We report an unusual case of leiomyoma developing in a female urethra diverticulum and review the literature.