[Leiomyosarcoma of the bladder. Apropos of a case].

Bladder leiomyosarcoma is a rare neoplasm. Early diagnosis, cystectomy, radiation therapy and chemotherapy seem to improve prognosis. The authors report one case of a leiomyosarcoma of the bladder in a seventy year old woman. There has been no evidence of recurrence after partial cystectomy, with more than a two-year follow up. Clinical, histological, therapeutic and prognostic aspects of this unusual tumor are discussed.