title: Strongly recommend biopsy of the duodenal stump in the diagnosis of retained gastric antrum.
mesh_terms: D001706:Biopsy; D004386:Duodenum / Q000601:surgery*; D006801:Humans; D010437:Peptic Ulcer / Q000601:surgery; D011706:Pyloric Antrum / Q000473:pathology*; D012008:Recurrence