1 Center for Interventional and Therapeutic Endoscopy, Division of Digestive Disease and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois.
2 Department of Pathology, Rush Medical College, Chicago, Illinois.
Video 1A case characterizing the extent and morphology of an intraductal mucinous biliary neoplasm using a novel cholangioscope and treatment with ampullectomy.