Acute Gastrointestinal Bleeding in Olmesartan-Associated Collagenous Gastroduodenitis: A Potential Endoscopic Complication

Acute Gastrointestinal Bleeding in Olmesartan-Associated Collagenous Gastroduodenitis: A Potential Endoscopic Complication

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Collagenous gastroenteritis is a rare disease that is known to be associated with the drug olmesartan, an angiotensin II receptor antagonist used to treat hypertension.It is characterized histologically by increased subepithelial collagen deposition with moen voss toilet paper holder associated inflammation and epithelial injury.Endoscopically, the mucosa appears inflamed and friable and may be nodular or atrophic.We report a case of acute gastric bleeding on direct mucosal contact during endoscopy in a patient with olmesartan-associated collagenous gastroduodenitis to raise awareness of marigold velvet curtains this potential endoscopic complication.