Endoscopic Mucosal Resection Performed Underwater for Nonampullary Duodenal Epithelial Tumor: Evaluation of Feasibility and Safety

Figure 5

(a) There was an elevated lesion on both the left side and the right wall of the second part of duodenum. (b) The boundary between the tumor and the normal mucosal surface became morphologically clear in underwater immersion.

(a)

(b)