Cholangiocarcinoma at the hepatic hilus: Sonographic findings
Bile Duct Neoplasms
Bile Ducts, Intrahepatic
Hepatic Duct, Common
Although Klatskin tumors are usually isoechoic, they can be revealed by sonography, and their morphology can be characterized. The extent of bile duct involvement may be shown on sonograms by the location of tumor and the distribution of bile duct obstruction. Portal vein involvement is frequent, and hepatic metastases are uncommon.