Breast cancer is the growth of abnormal cells in the ducts or lobes of the breast. Breast cancer may be either:
Some breast cancer is a mix of ductal and lobular carcinoma. Other less common invasive types include inflammatory breast cancer and male breast cancer.
After the type of cancer is known, the cancer cells are checked for estrogen receptors, progesterone receptors, and large amounts of a protein called HER2. This information helps a doctor plan the treatment.
If the cancer cells don't have these three traits, they are called "triple negative." Triple-negative breast cancer is a less common type of invasive breast cancer.
Current as of: October 25, 2024
Author: Ignite Healthwise, LLC Staff
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