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Accessory tools Angiectasia Barrett's esophagus Blood in lumen Cecum Colon diverticula Colon polyps Colorectal cancer Duodenal bulb Dyed-lifted-polyps Dyed-resection-margins Erythema Esophageal varices Esophagitis Gastric polyps Gastroesophageal_junction_normal z-line Ileocecal valve Mucosal inflammation large bowel Normal esophagus Normal mucosa and vascular pattern in the large bowel

normal Cancer-and-Normal abnormal

normal Cancer-and-Normal abnormal