BRCA1 and Familial prostate cancer: The results from the Breast Cancer Linkage Consortium (BCLC) showed a RR of 4.65 of prostate cancer in male BRCA2 mutation carriers (RR 7.33 below the age of 65 years) and 1.07 in BRCA1 carriers (with a RR of 1.82 for men under 65 years old)[21,22].