Tumor invasion confined to the mucosa |
A |
A |
Tis, N0 |
Tumor invasion limited to the submucosa, no lymph node involvement |
A |
B1 |
T1, N0 |
Tumor invasion limited to the submucosa, lymph node involvement |
C |
C1 |
T1, N1-2 |
Limited tumor invasion into the muscle layer, no lymph node involvement |
A |
B2 |
T2, N0 |
Limited tumor invasion into the muscle layer, lymph node involvement |
C |
C1 |
T2, N1-2 |
During the whole muscle layer tumor involvement, no lymph node involvement |
B |
B2 |
T3, N0 |
During the whole muscle layer tumor involvement, lymph node involvement |
C |
C2 |
T3, N1-2 |
Tumors have kept the neighboring organs, no lymph node involvement |
B |
B2 |
T4, N0 |
Tumors have kept the neighboring organs, lymph node involvement |
C |
C2 |
T4, N1-2 |
Other factors notwithstanding distant metastases |
D |
D |
T1-4, N0-2, M1 |