[Prostatic leiomyoma]

Large leiomyomas of the prostate are rare tumors. The authors report the case of a 78-year-old patient with two large prostatic leiomyomas who presented with chronic obstructive urinary symptoms. The US and CT aspects are illustrated; the signs are not specific but rather suggest a benign process. The tumor, probably of embryologic origin, must be distinguished from neoplasms when presenting in association with the classical benign prostatic hypertrophy. The definite diagnosis is obtained histopathologically. Prognosis is good with no evidence of recurrent disease.