Colon Cancer Staging

 

TNM:

    • T1 – invading submucosa
    • T2 – invading muscularis propria
    • T3 – invading subserosa or perirectal fat
    • T4a – invading adjacent organs but not serosa
    • T4b – invading serosa (desmoplastic response seen at serosa)
    • N0 – no positive regional nodes
    • N1 – 1-3 nodes involved
    • N2 – more than 4 nodes involved
    • M0 – no distant mets
    • M1 – distant mets

 

    • number of nodes recommended: at least 12

 

Staging:

Stage:

T

N

M

Treatment

1a

 

 

 

 

1b

 

 

 

 

2a

 

 

 

 

2b

 

 

 

 

3a

 

 

 

 

3b

 

 

 

 

4