cancer staging的意思|示意

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Cancer staging is a way of categorizing how severe a cancer is. Knowing the stage of a cancer helps doctors determine the best treatment option and helps them estimate a person's prognosis (outlook).

Cancer staging is based on many factors, including the size of the tumor, the extent to which the cancer has spread, and factors determining the grade of the cancer. Grading is based on how the cells of the tumor look under the microscope.

Cancer staging is determined according to the TNM system, which stands for:

T: Tumor size

N: Lymph node involvement

M: Metastasis (spread of the cancer)

After TNM staging, the cancer is given a number from 0 to 4. Stage 0 is for non-invasive cancers that are still in their original location, while stage 4 is for cancers that have metastasized (spread) to other organs.

Cancer stage helps doctors determine the best treatment. Stage 0 cancers usually require only local treatments, like surgery, while more severe cancers may require combinations of treatments, including surgery, radiation, and chemotherapy. Knowing the stage of the cancer can also help doctors estimate the patient’s prognosis. Generally, the higher the cancer stage, the poorer the prognosis.

Accurately determining the stage of a cancer is key to successful treatment, and is one of the most important aspects of cancer care.