Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Hilar CCA presenting as an intraluminal mass with biliary obstruction. The mass is isodense (arrow) on the coronal non-contrast enhanced CT (a) and hypointense on axial T2-weighted image (b) with upstream dilatation of the intrahepatic ducts. ERCP (c) shows a filling defect (arrow) representing the mass extending into the common bile duct with no filling of the intrahepatic ducts.
