Retroperitoneal lymph node recurrence of seminoma 6 years after high orchiectomy

Late recurrence of stage I testicular seminoma is rare. We herein report a case of retroperitoneal lymph node recurrence of testicular seminoma 6 years after high orchiectomy. A 39-year-old man had a left high orchiectomy for stage I testicular tumor in November 1997. Histopathological findings revealed seminoma (pT3). In 2003, follow up computed tomography showed retroperitoneal lymph nodes swelling. Serum tumor markers had been normal since 1997. Retroperitoneal lymph nodes were dissected in April 2004. Histopathological findings were recurrence of seminoma.