Classification of peribiliary cysts based on their location along the biliary tract
| Location of cysts | No of patients | Percentage (%) | |
| Type I | Along intrahepatic biliary tract | 118 | 87 |
| Type II | Along extrahepatic biliary tract | 9 | 7 |
| Type III | Along intrahepatic and extrahepatic biliary tract | 8 | 6 |
| Total | 135 | 100 | |