D1: T1a cancer that is no indication for EMR/ESD |
T1b, differentiated type, ≤1.5 cm, cN0 |
D1+: T1b, other than the above, cN0 |
D2: T1b, cN+ |
EMR: endoscopic mucosal resection |
ESD: endoscopic submucosal dissection |
cN0: clinically lymph node metastasis negative |
cN+: clinically lymph node metastasis positive |