Intraductal papillary neoplasm of the bile duct: The new frontier of biliary pathology

Figure 4 Magnetic resonance imaging of intraductal papillary neoplasms of the bile duct. A: Magnetic resonance cholangiopancreatography showed an intraductal lesion of the left hepatic duct with upstream bile duct dilatation; B: Diffuse dilatation of the intrahepatic left lobe bile ducts with low intensity tumors (T2 weighted image, coronal section); C: Magnetic resonance cholangiopancreatography showed a cystic type intraductal papillary neoplasm of the bile duct; D: Cystic type intraductal papillary neoplasm of the bile duct (T2 weighted image, coronal section).