Figure 3.
After removing dissected tissue. A: Ulcer bed after endoscopic submucosal dissection; B: Blue dotted line indicates the defect of the muscularis propria layer, and yellow dotted line indicates the perforation hole.
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.