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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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Eosinophilic Esophagitis
Eosinophilic esophagitis is an inflammatory disorder in which the wall of the esophagus, the tube leading from the throat to the stomach, becomes filled with a type of white blood cells called eosinophils. Which of the following is believed to be the cause of this disorder?
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