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Introduction to Gastritis and Peptic Ulcer Disease

By

Nimish Vakil

, MD, University of Wisconsin School of Medicine and Public Health

Last full review/revision Jun 2021| Content last modified Jun 2021
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Topic Resources

In Zollinger-Ellison syndrome Gastrinoma A gastrinoma is a tumor usually in the pancreas or duodenum (the first segment of the small intestine) that produces excessive levels of the hormone gastrin, which stimulates the stomach to... read more , a rare tumor that usually occurs in the duodenum, pancreas, or adjacent structures, produces a hormone called gastrin that causes the stomach to produce too much acid.

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Peptic Ulcer Disease
A peptic ulcer is a sore that forms where the lining of the stomach or duodenum (the first part of the small intestine) has been eaten away by stomach acids or digestive juices. In addition to Helicobacter pylori infection of the stomach, what is the most common cause of peptic ulcer?
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