Background A 64-year-old woman presented to the emergency room with a 3-month history of intermittent abdominal cramps, accompanied by nausea, vomiting, anorexia, and decreased bowel movements ...

In this disease, large amounts of gastrin are produced by gastrinoma cells. In patients with Zollinger-Ellison syndrome (ZES), the gastric parietal cell mass is expanded largely because of the ...

Zollinger-Ellison syndrome (ZES) is a rare digestive disease caused by a tumor (gastrinoma) in the pancreas or small intestine. These tumors, called gastrinomas, release the hormone gastrin, which ...

Since such gastrin measurements are strong indicators of a gastrin producing tumor, for example, a gastrinoma, some patients without a history of ulcers or signs of a multiple endocrine dysplasia ...