Imaging examination
Abdominal computed tomography showed gallbladder stones, wall thickening, and choledocholithiasis with slight dilatation of the intrahepatic bile ducts (Figure 1A). Magnetic resonance cholangiopancreatography (MRCP) revealed gallbladder stones with slight dilatation of the intrahepatic bile ducts, and blurred lower common bile duct (Figure 1B).