Stages of Colorectal Cancer
The type of treatment you will receive for your colorectal cancer depends on what stage it is in. Staging is a process doctors use to describe how far the cancer has spread.
Although there are several methods of staging, most doctors now use the TNM method. The TNM method is based on the size of the tumor (T), the spread of the cancer into nearby lymph nodes (N), and the spread of the cancer to other body parts (M, for metastasis). Some doctors still use an older method of staging called Dukes.
Let’s say your doctor has told you your cancer is at stage II. In the table below, find the column labeled "Stage." Now go down to the row labeled "II." In the columns to the right are the TNM staging system. You can find a description of each TNM label in the table above.
The Dukes staging system is shown in the far right column. This lists the stages as A, B, C, and D. The Dukes stages A through D are the same as TNM stages I through IIIC.
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