FIGURE 2.
An example of an image taken with endoscopic ultrasonography that exhibited an occupying lesion of the bile duct. The blue arrow indicates the clear margin of the lesion. The white arrow indicates the bile duct.
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.