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Gastric antral vascular ectasia (GAVE) is characterized by ectatic mucosal vessels with fibrin thrombi often localized to the gastric antrum. It is an uncommon cause of chronic GI blood loss associated with cirrhosis, autoimmune connective tissue disorders, bone marrow transplantation, and chronic kidney disease. Although GAVE often presents with characteristic flat, striped erythema radiating proximally from the pylorus (the so-called watermelon stomach), it can take on a nodular or polypoid appearance.
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Wright et al. (2016) studied this question.
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