title: Zollinger-Ellison syndrome treated by endoscopic removal of a duodenal gastrinoma.
mesh_terms: D000368:Aged; D004379:Duodenal Neoplasms / Q000378:metabolism / Q000601:surgery*; D005755:Gastrins / Q000378:metabolism*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D015043:Zollinger-Ellison Syndrome / Q000378:metabolism / Q000601:surgery*
chemical_list: D005755:Gastrins