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.
Abdominal enhanced computed tomography (CT) images. (A, B) An enhanced CT scan showed a moderately enhanced mass located in the hilar bile duct (white and black arrows) with regional lymph node involvement (asterisk). (C, D) CT angiography and 3-dimensional reconstruction revealed the absence of vascular invasion.
