Evaluation of resected specimens by endoscopic mucosal resection
| The following must be confirmed histologically for “complete resection”: |
| (1) Intramucosal cancer |
| (2) Well or moderately differentiated type adenocarcinoma |
| (3) No histological ulceration |
| (4) No lymphatic or venous invasion |
| (5) No tumour invasion to the lateral margin |