Endoscopic diagnosis and treatment of choledochocele

The choledochocele is the rarest form (1.4%) of choledochal cysts. It has been described in two variations: (1) both bile ducts and pancreatic duct drain directly into the choledochocele, which then drains into the duodenum with or without a long common channel, and (2) the choledochocele is a diverticulum or duplication cyst of the duodenum proximal to a normal ampulla. Patients normally present with abdominal pain, nausea, vomiting, and biliary colic with or without jaundice. Gallstones have been associated with this entity in 25% of cases. Pancreatitis is also a common initial presentation occurring in 30% of…