A 55-year-old woman presented with 1 month history of right hypochondrium pain, vomiting, and jaundice. On examination, she had tender right hypochondrium and palpable gall bladder. Blood investigations revealed increased white cell count with eosinophilia; serum bilirubin (6 mg/dL) and alkaline phosphatase (900U/L) were raised; alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were not significantly elevated. Ultrasonography showed a cyst in the right lobe of liver and dilated common bile duct (CBD) filled with echogenic debris. Gall bladder was distended and transonic. MRCP was performed for further evaluation. Cholangiographic thick slab MRCP revealed a cyst in the right lobe of liver closely related to right lobe ducts, with intracystic linear and irregular hypointensities; intrahepatic bile ducts were dilated and CBD filled with long, low signal intensity mass like structure. GB was distended and pancreatic duct slightly dilated [Figure 1]. Figure 1 Thick slab coronal plane MRCP image showing dilated intrahepatic bile ducts and a cyst closely related to right lobe ducts with equivocal evidence of communication. Cyst shows internal low signal intensity membranes; common bile duct is filled with long, ...