RESUMEN
Ampullary adenoma is rare but clinically important because it is a premalignant lesion. Use of endoscopic gastroduodenoscopy has increased detection of adenoma of the major duodenal papilla. Endoscopic papillectomy is a promising technique to supplant surgical ampullectomy, because it is less aggressive and more stable. However, various complications include bleeding, perforation, pancreatitis and cholangitis. We describe pancreatic and biliary strictures associated with cholangitis, and bile reflux through the pancreatic duct to the minor duodenal papilla after endoscopic papillectomy. Pancreatic and biliary strictures have not been hitherto reported complications. We performed endoscopic papillary balloon dilatation, minor papilla papillotomy and inserted a drain tube through the accessory pancreatic duct.