It depends on the diagnosis. Your cancer will be classified by stage and grade, usually numbers 1-4. Stages 1 and 2 mean the cancer is in the breast. Stage 3 means it is in the breast but has also spread to nearby lymph nodes. Stage 4 means it is more aggressive and is in the breast and in other sites in your body, aka metastatic disease. The grade of the tumor refers to what the cells look like that make up the tumor. Grade 1 means the cells are closer to normal breast cells. Grade 4 means the cells are really abnormal (larger, multiple nuclei, etc.).
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