Seminoma after orchiopexy. A case report.

A 29-year-old man had been operated on for bilateral cryptorchism at the age of 11. The right testis was not found and was considered to be aplastic. The left testis was placed surgically in the scrotum. When he entered a follow-up study for early detection of testicular cancer, the right testis was found intraperitoneally and was removed. A left testicular biopsy showed carcinoma in situ and orchiectomy was performed. This testis contained an invasive seminoma.