There are 4 possible stages describing whether cancer cells are in the lymph nodes – N0, N1, N2 and N3: N0 means there are no lymph nodes containing cancer cells. N1 means there are cancer cells in 1 ...

It has not grown beyond the inner layer (mucosa) of the colon or rectum (Tis, N0, M0). The cancer has grown into the submucosa, and possibly into the thick muscle layer beneath it (muscularis ...