Fig. 2From: Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case reportInfiltrative lesion on MRCP. MRCP shows an infiltrative mass involving the gallbladder neck, upper biliary tract, and hilar bile duct with high-signal intensity on diffusion-weighted image. In addition, a sharp-beaked stenosis of the hilar bile duct with upstream bile duct dilatation was noted (annotated with a white solid arrow)Back to article page