Which statement best explains "breast density" and its clinical implications?

Breast density is indeed best characterized by the proportion of glandular tissue compared to fatty tissue in the breast, which is critical to understand in a clinical context. High breast density means that there is a higher amount of glandular and fibrous tissue in comparison to fatty tissue. This is significant because dense breast tissue can mask the presence of tumors on mammograms, making it harder for radiologists to detect potential breast cancer. Consequently, women with dense breasts may require additional screening methods, like ultrasound or MRI, to improve the chances of detecting abnormalities.

Understanding breast density has clinical implications for the management of breast health, as it informs decisions regarding screening strategies. It also helps in risk assessment, as women with higher breast density may have an elevated risk of breast cancer compared to those with less dense breast tissue. This knowledge is paramount for breast health navigators, as they guide patients through the complexities of breast screening and cancer risk.