title: Rectal duplication: an unusual cause for an abdominal mass.
mesh_terms: D000005:Abdomen; D000008:Abdominal Neoplasms / Q000175:diagnosis*; D002081:Buttocks; D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000175:diagnosis; D003937:Diagnosis, Differential; D004106:Dilatation; D005260:Female; D006801:Humans; D011859:Radiography; D012007:Rectum / Q000002:abnormalities*; D012445:Sacrococcygeal Region; D013724:Teratoma / Q000175:diagnosis*; D014513:Ureter / Q000000981:diagnostic imaging; D014515:Ureteral Diseases / Q000000981:diagnostic imaging