Fig. 4
From: Validity of MDCT cholangiography in differentiating benign and malignant biliary obstruction
Peri-hilarcholangiocarcinoma. Malignant obstructive jaundice due to common hepatic duct confluence peri-hilarcholangiocarcinoma (pathologically proved) exerting mild biliary obstruction in the patient with situs inversustotalis. Male patient, 58 years old, presented with intermittent attacks of jaundice and pruritus. a Axial non-contrast image showing a situs inversustotalis patient with mild left and right intra-hepatic biliary dilatation that stopped abruptly at the level of confluence of the hepatic ducts. b–d Axial contrast (arterial, portal, and delayed phases) images showing soft tissue mass at the common hepatic duct extending to hepatic ductal bifurcation that showed faint arterial phase enhancement and no enhancement at the portal and delayed phases. e Coronal oblique reformatted MDCT cholangiography image shows the soft tissue mass at the common hepatic duct