Colorectal

Bowel Cancer Staging

You may hear your doctor talking about ‘Dukes’ or ‘TNM’ stages.

Dukes
is a simplified sort of classification for staging tumours according to their degree of invasion and spread (Dukes A, B, C, D)

TNM
is a more detailed type of staging classification, describing:

1. The degree of Tumour invasion (T1 to T4)
2. Node involvement (from N0 which is that no lymph nodes are affected, to N2 where there are 4 or more lymph nodes are affected).
3. Whether distant Metastases are present or not (also called secondaries). M0 means cancer has not spread. M1 means that it has.

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