LCIS is more common in women who have not reached their menopause. This is now thought to be unnecessary and women do not usually need any treatment when LCIS is diagnosed. Because most women with LCIS will not develop breast cancer they will never need treatment. Any changes in the breast can then be picked up at the earliest stage and treated if appropriate. This may be when there is a strong family history of breast cancer, or because of extreme feelings of anxiety about the risk of developing breast cancer.
Tamoxifen is a hormone therapy which is commonly used to treat breast cancer.
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