This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Ménétrier disease is a gastrointestinal condition characterized by overgrowth of the mucous cells (foveola) in the mucous membrane lining the stomach, causing enlarged gastric folds. This leads to excessive mucus production, causing protein loss from the stomach and low or absent levels of stomach acid. Symptoms may include pain in the upper middle region of the stomach, nausea, vomiting, and diarrhea. The cause of Ménétrier disease is largely not known, although some cases are associated with infection, particularly pediatric cases, which can be caused by CMV infections. Treatment may include medications such as cetuximab and gastrectomy in severe cases.
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