the section of the deepest cancer invasion in the submucosal layer was selected and used for analysis. The age and sex, tumor location, macroscopic classification, tumor size, depth of submucosal ...

EUS can detect lesions as small as 2-3 mm in size and is the best method for determining the five echo layers of the stomach. The five echo layers are histologically correlated with the mucosa ...

ESD, a more advanced technique, is employed for complex polyps with a higher risk of submucosal invasion. It involves creating a precise incision and dissecting the polyp layer by layer from the ...