Breast Cancer Risk Assessment: Calculating Lifetime Risk Using the Tyrer-Cuzick Model

One size does not fit all for breast cancer screening. Early detection and prevention are most effective for those most at risk. Several United States organizations recommend offering annual screening breast magnetic resonance imaging in addition to mammography for women with > 20% lifetime risk for breast cancer using models that take extensive family history into account. The purpose of this article is to help nurse practitioners make critical decisions about breast cancer screening and referrals to genetic services for women based on their lifetime risk for breast cancer. This article reviews several software-based risk assessment models and provides instructions for using the Tyrer-Cuzick model.