title: Congenital duodenal diaphragm in an adult: diagnosis by duodenoscopy.
mesh_terms: D004380:Duodenal Obstruction / Q000175:diagnosis* / Q000601:surgery; D004386:Duodenum / Q000002:abnormalities*; D004724:Endoscopy; D006801:Humans; D008297:Male; D008566:Membranes / Q000002:abnormalities; D008875:Middle Aged