Isolated intrapancreatic IgG4-related sclerosing cholangitis

Figure 5 Imaging findings of Case 4. A: Wall thickness of extrahepatic bile duct on abdominal computed tomography (CT); B: Normal size of the pancreas on abdominal CT; C: Stenosis in the lower extrahepatic bile duct on endoscopic retrograde cholangiography; D: Normal main pancreatic duct on endoscopic retrograde pancreatography; E (at the hilar hepatic lesion); F ( at the bifurcation of cystic duct); G (at the intrapancreatic lesion): Bile duct wall thickening with smooth inner and outer margin in areas with stenosis (G) and without (E, F) on intraductal ultrasonography.