TNM system for skin cancer
The American Joint Commission on Cancer has developed a uniform system for describing the stages of skin cancer. This system allows doctors to determine how advanced a skin cancer is, and to share that information with each other in a meaningful way. This system, known as the TNM system, is composed of three key pieces of information:
- Tumor (T) describes the tumor’s size, location and how deep it has grown into the skin.
- Nodes (N) indicates whether or not cancer cells have spread to nearby lymph nodes, or the channels connecting the lymph nodes.
- Metastasis (M) refers to whether the cancer cells have spread to distant organs.