Genetic Testing for Breast Cancer and Radical Mastectomy—Are Women Being Misled into a False Sense of Security?
A key point for women to remember is that while women with BRCA defects have a 45-65 percent increased risk of breast cancer, only about TWO PERCENT of diagnosed breast cancers are caused by BRCA faults. So this genetic defect is nowhere close to being a primary cause of breast cancer. Clearly, other non-genetic factors play a far more significant role.