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.
Water immersion-assisted EUS for ampullary lesions. A representative image of ampullary lesions obtained by water immersion-assisted EUS is shown. Sharp EUS images could not be obtained due to artifacts caused by the presence of air (triangle) close to the ampulla (yellow arrow) in the second duodenal portion
