The association of mammographic density with risk of contralateral breast cancer and change in density with treatment in the WECARE study

摘要

BackgroundMammographic density (MD) is an established predictor of risk of a first breast cancer, but the relationship of MD to contralateral breast cancer (CBC) risk is not clear, including the roles of age, mammogram timing, and change with treatment. Multivariable prediction models for CBC risk are needed and MD could contribute to these.