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How do you counsel a woman regarding her previous hormonal contraception and the risks with her newly diagnosed invasive breast cancer?

Recent NEJM study showed an increased breast cancer relative risk in longer durations of hormonal contraceptive use that could last up to 5 years. Previous studies (Marchbanks et al, NEJM, 2002) showed no increased cancer risk with OCPs.
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Medical Oncology · Cleveland Clinic Florida
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I believe the risk of breast cancer from the use of hormonal contraception is very small, in the absence of other contributing risk factors such as family history.

A recent 2017 NEJM article (Morch et al) assessed the associations in a large cohort of 1.8 million women in Denmark followed for > 10 ye...

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