 Imaging presented the patient with three cystic masses, with similar structures to a uterus and ovary, thus PMDS.During operation, the surgeons found malignant degeneration of the Mullerian remnants which occurs to the body if PMDS is unnoticed for a long period of time.The cause of the complication presented to the male patient is due mainly to the unidentified bilateral cryptorchidism since birth, as doctors at that time assumed the complication was just the “congenital absence of his right testis”.