BRCA2 and breast cancer: Zeinomar et al. [8] in a study comprising 1208 BRCA1/BRCA2 PV carriers, reported that the risks associated with having BC attributed to BBD were unaffected by BRCA mutational status, with an increased risk for BRCA1 carriers (HR 1.64) and BRCA2 carriers (HR 1.34), similar to non-carriers (HR 1.31, pinteraction = 0.95).