Gastrinoma is the second most common functional pancreatic neuroendocrine tumor (pNET), with a yearly incidence of approximately 0.5 to 21.5<unk> s per a million of people worldwide. Gastrinomas are located predominantly in the duodenum (70%) and pancreas (25%). Pancreatic gastrinomas are larger than their duodenal counterparts, may occur in any portion of the pancreas, and comprise 25% of these tumors. Gastrinomas are also the most common functional and malignant pancreatic endocrine tumors. They are characterized by gastric hypersecretion that results in peptic ulcers and diarrhea; this condition is known as<unk><unk>  syndrome (ZES).
medical cause of Zollinger–Ellison syndrome
medical cause of Exocrine pancreatic insufficiency
medical cause of Gastritis
caption of Plummer–Vinson syndrome
symptom of Coeliac disease
complications of Crohn's disease
symptom of Autoimmune polyendocrine syndrome type 1
complications of Helicobacter pylori