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Breast Cancer

What is breast cancer?

Breast cancer is a cancer that starts in breast tissue. It happens when cells in the breast change and grow out of control. The cells usually form a tumor.

Sometimes the cancer does not spread any further. This is called "in situ." If the cancer spreads outside the breast, the cancer is called "invasive." It may just spread to nearby tissues and lymph nodes. Or the cancer may metastasize (spread to other parts of the body) through the lymph system or the blood.

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Results 1 - 10 of 2,234 for breast cancer
  1. Breast Cancer (National Library of Medicine)  
    What is breast cancer? Breast cancer is a cancer that starts in breast tissue. It happens when cells in the breast change and grow out of ... body) through the lymph system or the blood. Breast cancer is the second most common type of cancer ...
  2. Male Breast Cancer (National Library of Medicine)  
    Although breast cancer is much more common in women, men can get it too. It happens most often to men ... usually aren't cancer. However, most men with breast cancer have lumps. Other breast symptoms can include: Dimpled ...
  3. Breast cancer is a disease in which certain cells in the breast become abnormal and multiply uncontrollably to form a tumor. Although breast cancer is much ...
  4. Breast cancer screenings can help find breast cancer early, before you notice any symptoms. In many cases, finding breast cancer early makes it easier to treat or cure. But screenings ...
  5. Hormone therapy to treat breast cancer uses drugs or treatments to lower levels or block the action of female sex hormones (estrogen and progesterone) in a ...
  6. ... cancer can start in other areas of the breast. ... Breast cancer risk factors are things that increase the chance that you could develop breast cancer: Some risk ...
  7. Breast cancer risk factors are things that increase the chance that you could get cancer. Some risk factors ... absolutely will get cancer. Many women who get breast cancer do not have any known risk factors or ...
  8. Breast cancer is cancer that starts in breast tissue. Both males and females have breast tissue. This means that anyone, including men and boys, can develop breast cancer. Breast cancer in men is rare. Male breast ...
  9. ... to evaluate some breast symptoms and to find breast cancer in women with no symptoms. ... images. This does not always mean you have breast cancer. Your health care provider may simply need to ...
  10. ... the same breast or the other breast after breast cancer has been diagnosed Distinguish between scar tissue and ... be done after a mammogram to screen for breast cancer in women who: Are at very high risk ...
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