In our last post we discussed the various stages of cancer. There are other ways for doctors to describe and understand the progression of a patient’s cancer. Doctors typically use the American Joint Committee on Cancer’s TNM system when describing a cancer’s stage. It’s important to remember that each type of cancer has its own TNM system as well.
TNM stands for tumor, node, and metastasis. Each one of these is used to describe the cancer. A number from zero to four is used after the letter “T” in order to explain the location and size of the tumor. It also describes how much it has grown into the tissue nearby.
The letter “N” will also include a number ranging from zero to three. This letter explains whether the cancer was found in the lymph nodes and how many lymph nodes have cancer.