Persistent Wolffian body in inguinal canal.
D000008:Abdominal Neoplasms / Q000473:pathology*; D002675:Child, Preschool; D002828:Choristoma / Q000473:pathology*; D006801:Humans; D007264:Inguinal Canal / Q000473:pathology*; D008297:Male; D008650:Mesonephros