Abstract
Scalloping of the duodenal mucosal folds is an endoscopic finding of small bowel mucosal pathology that is generally due to villous atrophy. Though it can be seen in many disease processes, it is most commonly associated with celiac disease. We report three patients with scalloping of duodenal folds and histologic confirmation of villous atrophy due to Crohn's disease. All patients had negative celiac serologies and two had positive markers for Crohn's disease (anti-Saccharomyces cerevisiae antibodies). Patients had either ileitis or ileocolitis in addition to duodenal abnormalities. These cases illustrate that scalloping can occur in the duodenum in Crohn's disease.
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