Diagram Colon Cancer Stages
The most common staging system for colorectal cancer is the TNM system. For colorectal cancer there are 5 stages – stage 0 followed by stages 1 to 4. Often the stages 1 to 4 are written as the Roman numerals I, II, III and IV. Generally, the higher the stage number, the more the cancer has spread.
The most common staging system for colorectal cancer is the TNM system. For colorectal cancer there are 5 stages – stage 0 followed by stages 1 to 4. Often the stages 1 to 4 are written as the Roman numerals I, II, III and IV.
Stage 1 – The cancer has grown into the submucosa or muscle, but has not spread to the lymph nodes or elsewhere (T1 N0 M0 or T2 N0 M0). Stage 2 – The cancer has grown through the muscle wall or through the outer layer of the bowel and may be growing into tissues nearby.