title: Zollinger-Ellison syndrome due to duodenal ectopic islet-cell tumour.
mesh_terms: D007516:Adenoma, Islet Cell / Q000473:pathology; D000328:Adult; D000368:Aged; D004379:Duodenal Neoplasms / Q000150:complications*; D005743:Gastrectomy; D005745:Gastric Acidity Determination; D006632:Histamine; D006801:Humans; D008297:Male; D008875:Middle Aged; D012636:Secretory Rate; D014628:Vagotomy; D015043:Zollinger-Ellison Syndrome / Q000209:etiology*
chemical_list: D006632:Histamine