Multiple endocrine neoplasia type 1 (MEN 1)  Gastrinoma (duodenal gastrinoma and pancreatic gastrinomas)  Usually these gastriomas are small (less < 1 cm), multiple ones,less often to metastasize to liver rather than pancreatic gastrinomas. Peptic ulcer disease
What is the underlying mechanism or physiology behind Zollinger-Ellison syndrome?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What is the underlying mechanism or physiology behind Zollinger-Ellison syndrome? [/INST] \n Multiple endocrine neoplasia type 1 (MEN 1)  Gastrinoma (duodenal gastrinoma and pancreatic gastrinomas)  Usually these gastriomas are small (less < 1 cm), multiple ones,less often to metastasize to liver rather than pancreatic gastrinomas. Peptic ulcer disease</s>