Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Sep 27, 2022; 14(9): 986-996
Published online Sep 27, 2022. doi: 10.4240/wjgs.v14.i9.986
Figure 3
Figure 3 A typical submucosal lesion. A: ME-NBI image shows micro-vessels dilated more than three times that of B2 vessels (type B3); B: Ultrasonography image shows a hypoechoic lesion invading the fourth layer; C: Hematoxylin-eosin staining (× 20) of a surgical specimen shows a moderately differentiated squamous cell carcinoma infiltrated to the middle third of the submucosa without muscularis propria involvement.