The incidence of rupture into the biliary tree ranges between 3 and 17%.7-9 The rupture of the hydatid cyst in the biliary ducts and the migration of the hydatid material in the biliary tree lead to the apparition of other biliary complications like: cholangitis, sclerosis
odditis, hydatid biliary lithiasis etc.6 In our case involvement of biliary tree and common bile duct was seen leading to cholangitis and jaundice.