- in the colon and the rectum: sessile serrated adenomas, adenomas or superficial adenocarcinoma (well differentiated G1), larger than 15 mm, corresponding to non granular Lateral spreading tumor (NG-LST) or granular (G-LST) with a focal Kudo V zone in the lesion, with a circumferential extension of less than two thirds and with only a superficial extension (no sub mucosal invasion and no lymph nodes in EUS endoscopy of the rectum).