Figure 1.
(a) There is a diffuse circular elevated lesion in the rectum. (b) Blue laser imaging emphasized the contours of the ridge edges and the white color of the apex.
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.