Urogenital nonunion--a rare anomaly associated with the undescended testis.

Complete urogenital nonunion presenting as complete separation of the epididymis and testicle is a rare condition. The anomaly has an embryologic basis and frequently is associated with an undescended testis. We present a case of complete separation of the testis and epididymis found incidentally during an exploration of an undescended testicle palpable in the inguinal canal. We also provide a review of this topic and management strategies.