Definition of breast cancer: Cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.
Estimated new cases and deaths from breast cancer in the United States in 2012:
See the online booklet What You Need To Know About™ Breast Cancer to learn about breast cancer symptoms, diagnosis, treatment, and questions to ask the doctor.
For an overview of research advances, see Cancer Advances In Focus: Breast Cancer.
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 | New cases: 226,870 (female); 2,190 (male) |
| Deaths: 39,510 (female); 410 (male) |
See the online booklet What You Need To Know About™ Breast Cancer to learn about breast cancer symptoms, diagnosis, treatment, and questions to ask the doctor.
For an overview of research advances, see Cancer Advances In Focus: Breast Cancer.
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Treatment
Information about treatment, including surgery, chemotherapy, radiation therapy, immunotherapy, and vaccine therapy- Breast Cancer Treatment
[ patient ] [ health professional ] - Male Breast Cancer Treatment
[ patient ] [ health professional ] - Breast Cancer Treatment and Pregnancy
[ patient ] [ health professional ] - Clinical Trials to Treat Breast Cancer
- Drugs Approved for Breast Cancer
- Eribulin Improves Survival of Women with Metastatic Breast Cancer
- Trastuzumab after Chemotherapy Is Effective in HER2-Positive Breast Cancer
- Breast Cancer Cells Found by Immunochemistry in Sentinel Nodes Not Associated with Survival
- When Combined with Chemotherapy, Bevacizumab Is Associated with Increased Risk of Death
- Targeted Therapies for Breast Cancer
Prevention, Genetics, Causes
Information related to prevention, genetics, risk factors- Breast Cancer Prevention
[ patient ] [ health professional ] - Genetics of Breast and Ovarian Cancer
[ health professional ] - Find Clinical Trials to Prevent Breast Cancer
- Exemestane Substantially Reduces Breast Cancer Risk
- Tool Weighs Benefits, Risks of Raloxifene or Tamoxifen to Prevent Breast Cancer
- Breast Cancer Risk Assessment Tool
Screening and Testing
Information about methods of cancer detection including new imaging technologies, tumor markers, and biopsy procedures- Breast Cancer Screening
[ patient ] [ health professional ] - Clinical Trials to Screen for Breast Cancer
- Learn About Mammograms
- Understanding Breast Changes: A Health Guide for Women
- Breast Cancers Arising Between Mammograms Have Aggressive Features
