Joint Program in Nuclear Medicine Zollinger-Ellison Syndrome Annick Van den Abbeele, MD Ruth Hardoff, MD February 12, 1985 Presentation A 62 year-old white male underwent a cholecystectomy 7 years ago. At that time, the liver was normal but an enlarged pancreatic head was noted. Three years ago, he was admitted for upper GI bleeding. Endoscopy revealed multiple ulcers in the duodenum and stomach.