Red Spot Lesions in the Duodenal Bulb Are a Highly Specific Endoscopic Sign of Celiac Disease: A Prospective Study.

We have recognized red spot lesions (RSLs) in the duodenal bulb in children with celiac disease (CD) and believe they may represent an underappreciated and distinct endoscopic sign of CD. A total of 171 pediatric patients undergoing esophagogastroduodenoscopy with duodenal biopsy for symptoms consistent with CD were prospectively recruited. There were 75 patients who met criteria for CD and the remaining 96 patients served as symptomatic controls. As compared to endoscopic markers frequently mentioned in literature, RSLs had comparable sensitivity, specificity, positive predictive value, and negative predictive value of 31%, 94%, 80%, and 64%, respectively. If RSLs are noted during endoscopy in a patient with gastrointestinal symptoms that might be the result of CD, then sufficient duodenal biopsies to make the diagnosis of CD should be obtained.