breast cancer information
What are the "stages" of breast cancer?

STAGE 0 (carcinoma in situ) is sometimes called noninvasive carcinoma or carcinoma in situ.
Lobular carcinoma in situ (LCIS) refers to abnormal cells in the lining of a lobule. These abnormal cells seldom become invasive cancer. However, their presence is a sign that a woman has an increased risk of developing breast cancer. This risk of cancer is increased for both breasts. Some women with LCIS may take a drug called tamoxifen, which can reduce the risk of developing breast cancer. Others may take part in studies of other promising new preventive treatments. Some women may choose not to have treatment, but to return to the doctor regularly for checkups. And, occasionally, women with LCIS may decide to have surgery to remove both breasts to try to prevent cancer from developing. (In most cases, removal of underarm lymph nodes is not necessary.)
carcinoma in situ (DCIS) refers to abnormal cells in the lining of a duct. DCIS is also called intraductal carcinoma. The abnormal cells have not spread beyond the duct to invade the surrounding breast tissue. However, women with DCIS are at an increased risk of getting invasive breast cancer. Some women with DCIS have breast-sparing surgery followed by radiation therapy. Or they may choose to have a mastectomy, with or without breast reconstruction (plastic surgery) to rebuild the breast. Underarm lymph nodes are not usually removed. Also, women with DCIS may want to talk with their doctor about tamoxifen to reduce the risk of developing invasive breast cancer.
Women who have stage IV breast cancer receive chemotherapy and/or hormonal therapy to destroy cancer cells and control the disease. They may have surgery or radiation therapy to control the cancer in the breast. Radiation may also be useful to control tumors in other parts of the body.
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