Medical
Dukes Classification
Please note that the survival rates are old information...
| DUKES CLASSIFICATION |
EXTENT OF INVASION
|
LYMPH NODE INVOLVEMENT |
PROGNOSIS |
| Dukes A |
Limited to the mucosa |
None |
5 year survival >90% |
| Dukes B1 |
into muscularis propria |
No lymph node involvement |
5 year survival 70-85% |
| Dukes B2 |
through muscularis propria |
No lymph node involvement |
5 year survival 55-65% |
| Dukes C1 |
into muscularis propria |
Lymph node involvement is present |
5 year survival 45-55% |
| Dukes C2 |
through muscularis propria |
Lymph node involvement is present |
5 year survival 20-30% |
| Dukes D |
distant metastases |
not applicable |
5 year survival <1% |
Source:
http://personalweb.sunset.net/~mansell/polyp.htm
Source:
http://www.exactsciences.com/cic/where_occur/colorectal/treatment+options.htm
| 
