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Breast cancer is a malignant growth of tissue (tumor) in the breast. Unlike noncancerous (benign) tumors, malignant tumors are cancerous and can spread to other parts of the body. The two most common types of breast cancer start in the milk ducts (ductal carcinoma) or in the lobules where milk is made in the breast (lobular carcinoma). Breast cancer is one of the most common types of cancer in women.
The exact cause of female breast cancer is unknown.
This information is not intended to replace advice given to you by your health care provider. Make sure you discuss any questions you have with your health care provider.
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