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.
a & b (video) The para and pericholedochal collaterals can perforate the muscular layer of the CBD and these perforators can either run in the subepithelial layer of the CBD as subepithelial varices. The subepithelial varices should not be confused with the epicholedochal varices, which are present mainly on the surface of CBD.
