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) Proximal colon defined from the cecum to the hepatic flexure. Transverse colon defined from the hepatic to the splenic flexure. Descending colon defined from the splenic flexure to the left iliac crest. Recto-sigma defined from the left iliac crest to the anus. (B) A typical region of interest (ROI) definition in the proximal colon.
