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(a) Endoscopic view of the duodenum. Upper GI endoscopy showed multiple polypoid lesions in the duodenum. (b) NBI view of the duodenum. NBI demonstrated a coiled, elongated vascular pattern within elevated lesions of the duodenum. (c) Double-balloon endoscopic view of the jejunum. Double-balloon endoscopy showed multiple polypoid lesions in the jejunum.
