This information is based on AJCC Staging systems prior to which were primarily based on tumor size and lymph node status. Since the updated staging system for breast cancer now also includes the ER, PR and HER2 status, the stages may be higher or lower than previous staging systems. Whether or not treatment strategies will change with this new staging system are yet to be determined.
Breast cancer stage is the most important factor for prognosis. In general, the earlier the stage, the better the prognosis will be. If you were diagnosed beforeyour breast cancer was staged a bit differently than it would be today.
Treatment after surgery is called adjuvant therapy and it may further decrease the risk of cancer recurrence. The following is a general overview of treatment for Stage I breast cancer. Treatment may consist of surgery, radiation, chemotherapy, biological therapy, or a combination of these treatment techniques. In some cases, participation in a clinical trial utilizing new, innovative therapies may provide the most promising treatment.
The breast cancer TNM staging system is the most common way that doctors stage breast cancer. Your scans and tests give some information about the stage of your cancer. But your doctor might not be able to tell you the exact stage until you have surgery.
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Put simply, the stage describes how widespread or advanced the cancer is in the breast tissue and possibly other parts of your body. Determining the stage helps doctors explain the breadth of the cancer to you. Breast cancer is also classified according to other characteristics.
The stage of the cancer helps you and your doctor:. Breast cancer stage is usually expressed as a number on a scale of 0 through IV — with stage 0 describing non-invasive cancers that remain within their original location and stage IV describing invasive cancers that have spread outside the breast to other parts of the body. Your pathology report will include information that is used to calculate the stage of the breast cancer — that is, whether it is limited to one area in the breast, or it has spread to healthy tissues inside the breast or to other parts of the body.
Inthe American Joint Committee on Cancer announced the 8th edition of its cancer staging system. For breast cancer, the most significant change in the staging system is the incorporation of biomarkers into the anatomic staging to create prognostic stages. Different prognostic stages are assigned to tumors with the same anatomic stages according to the tumor grade, hormone receptor estrogen receptor; progesterone receptor status, and HER2 status. A Clinical Prognostic Stage is assigned to all patients regardless of the type of therapy used; in contrast, a Pathologic Prognosis Stage is assigned to patients in whom surgery is the initial treatment.