[A case of persistent müllerian duct syndrome associated with seminoma].

A case of persistent Müllerian duct syndrome associated with seminoma is presented. A 28-year-old man was hospitalized with the complaint of a palpable mass in the left lower abdomen and lumbago. Physical examination revealed a normal right scrotal testicle and a small right inguinal hernia that did not contain a mass, but no testicle was found in the left scrotum. Laparotomy was performed for suspected tumor of an intraabdominal testis. At abdominal exploration the left testis was found to be cross-ectopic to just behind the pubic symphysis and to be replaced completely with a large tumor, which was supplied by the left spermatic vessels and had a vas deferens emptied to the right seminal vesicle. In addition another cord-like structure was traced into the right inguinal canal. The tumor was dissected with these structures. On histological examination the tumor was pure seminoma and the cord-like structure proved to be an immature uterus, Fallopian tubes and seminal vesicle.