Bilateral synchronous tumors in testes in unrecognized mixed gonadal dysgenesis: a case report and review of literature.

A case of germ cell tumor occurring simultaneously in the descended and undescended testes of an infertile phenotypic man is reported. Cytogenetic studies revealed a 46XY pattern. Exploration of the abdomen showed a left testicular mass in close proximity to a rudimentary uterus, a fallopian tube and a right testicular mass in the scrotum. Complete excision of both testicular masses and the uterus with the adnexa was done. Histologically, both tumors were seminoma. The patient was well 2 years after treatment.