From: Todani type III: like biliary dilatation with duodenal prolapse—a case report
Classification | Anatomic features of the bile duct |
---|---|
Type I | |
Type Ia | Cystic dilatation of the common bile duct |
Type Ib | Segmental expansion of the common bile duct without an anomalous pancreaticobiliary junction |
Type Ic | Diffuse or cylindrical dilatation of the common bile duct with an anomalous pancreaticobiliary junction |
Type II | Diverticulum type in the whole extrahepatic duct |
Type III | Choledochocele located in the duodenal wall which is frequently associated with an ampullary obstruction |
Type IV | |
Type IVA | Multiple cysts in both the intrahepatic and extrahepatic bile ducts |
Type IVB | Multiple dilatations confined only to the extrahepatic bile duct |
Type V | Single or multiple dilatations of the intrahepatic bile duct (Caroli’s disease) |