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The breast can be affected by other benign breast conditions.
Radial scars are star-shaped lesions (abnormal area of tissue) made up of gland and supportive tissue fibres in the breast. They are not really scars, but they look like scars when examined under a microscope. Radial scars may slightly increase the risk of breast cancer because they are made up of cells that multiply at a faster than normal rate (proliferative).
Fat necrosis occurs when fatty tissue of the breast is damaged or injured and replaced by scar tissue. Fat necrosis does not increase a woman’s risk of breast cancer.
Adenosis is a benign breast condition in which the lobules of the breast become enlarged due to the presence of more than the normal number of milk glands. Adenosis does not increase a woman’s risk of developing breast cancer.
When the enlarged lobules are surrounded by scar-like tissue, it is called sclerosing adenosis. Women with sclerosing adenosis of the breast have a slightly greater risk of developing breast cancer.
A clinical trial led by the Society’s NCIC Clinical Trials group found that men with prostate cancer who are treated with intermittent courses of hormone therapy live as long as those receiving continuous therapy.