Staging

The stage of a cancer is a term used to describe its size and whether it has spread beyond the area of the body where it started. Knowing the extent of the cancer helps the doctors decide on the most appropriate treatment for you. There isn’t a specific staging system for peritoneal mesothelioma. But doctors sometimes use the TNM system.

T describes the size of the cancer.

N describes whether the cancer has spread to the lymph nodes and which nodes are involved. For example, N0 means that no lymph nodes are affected, while N1 means there are cancer cells in the lymph nodes.

M describes whether the cancer has spread (metastasised) to another part of the body. For example, M0 means the cancer has not spread to other parts of the body, while M1 means the cancer has spread to other parts of the body.

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