Table 2.
AJCC Summary Stage | ||||
---|---|---|---|---|
I | II | III | IV | |
Nodes Positive | ||||
< 1 | 49 | 122 | 0 | 5 |
1–3 | 0 | 0 | 85 | 9 |
≥ 3 | 0 | 0 | 59 | 30 |
No nodes examined | 0 | 0 | 0 | 7 |
Unknown | 0 | 0 | 0 | 1 |
Nodes Examined | ||||
< 8 | 21 | 28 | 29 | 11 |
8–12 | 10 | 31 | 36 | 13 |
12–16 | 9 | 31 | 33 | 11 |
> 16 | 9 | 32 | 45 | 16 |
No nodes examined | 0 | 0 | 0 | 7 |
Unknown | 0 | 0 | 1 | 1 |
Proximal Margin Involvement |
||||
Involved | 0 | 0 | 0 | 0 |
Uninvolved | 49 | 122 | 144 | 47 |
Cannot be assessed | 0 | 0 | 0 | 5 |
Distal Margin Involvement |
||||
Involved | 1 | 0 | 0 | 0 |
Uninvolved | 48 | 122 | 144 | 47 |
Cannot be assessed | 0 | 0 | 0 | 5 |
Location | ||||
Ascending Colon | 4 | 19 | 21 | 7 |
Hepatic Flexure | 2 | 8 | 10 | 2 |
Transverse Colon | 3 | 18 | 10 | 4 |
Splenic Flexure | 1 | 5 | 7 | 1 |
Descending Colon | 0 | 7 | 4 | 0 |
Rectosigmoid Junction | 0 | 2 | 2 | 1 |
Cecum | 11 | 28 | 32 | 14 |
Appendix | 0 | 0 | 0 | 2 |
Sigmoid Colon | 28 | 35 | 58 | 20 |
Colon, Not Specified | 0 | 0 | 0 | 1 |
Blood/Lymphatic Vessel Invasion |
||||
Intramural | 1 | 1 | 12 | 4 |
Extramural | 0 | 4 | 13 | 2 |
Absent | 48 | 116 | 119 | 42 |
- Stage I: T1–T2, N0, M0; Dukes A
- Stage II: T3–T4, N0, M0; Dukes B
- Stage III: Any T, N1–N2, M0; Dukes C
- Stage IV: Any T, Any N, M1; Dukes C