Case Report: A rare case of choledochal cyst.

Choledochal cysts are dilated portions of the biliary tract that account for 1% of all benign biliary diseases. It is prevalent among Asian and female populations and the incidence is 1:100,000-150,000. Among the different types, only 15-35% of all choledochal cysts are type IV cysts, with type I being the most common representing 50-80%.