Gastrinoma is the second most common functional pancreatic neuroendocrine tumor (pNET), with a yearly incidence of approximately 0.5 to 21.5 cases 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).
causes of Zollinger–Ellison syndrome
risks of Peritonitis
risks of Short bowel syndrome
risks of Giardiasis
causes of Peanut allergy
causes of Gerstmann syndrome
causes of Heartburn
risks of Stevens–Johnson syndrome