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gastrinoma (gas-trih-NOH-muh)

 A tumor that causes overproduction of gastric acid. It usually begins in the duodenum (first part of the small intestine that connects to the stomach) or the islet cells of the pancreas. Rarely, it may also begin in other organs, including the stomach, liver, jejunum (the middle part of the small intestine), biliary tract (organs and ducts that make and store bile), mesentery, or heart. It is a type of neuroendocrine tumor, and it may metastasize (spread) to the liver and the lymph nodes.



Previous Definitions:gastric atrophy, gastric cancer, gastric mucosal hypertrophy, gastric reflux, gastrin
Next Definitions:gastritis, gastroenterologist, gastroesophageal junction, gastroesophageal reflux, gastrointestinal

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