Cancer Institute A national cancer institute
designated cancer center

Anal Cancer Staging

TNM System of Staging

The TNM System is a standard system for describing the extent of a cancer's growth. This system was developed by the American Joint Committee on Cancer (AJCC) and is the most common system used to stage anal cancer. Here's what the letters stand for in the TNM System.

Stage Groupings of Anal Cancer

Once your T, N, and M stages have been determined, this information is put together in what is called stage grouping. This is used to determine your overall disease stage. Stage grouping uses Roman numerals going from 0 (the earliest stage) to IV (the most advanced stage).

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