Addition of Lynch Syndrome genes (MLH1, MSH2, MSH6, PMS2 and EPCAM) which are not classical breast cancer predisposition genes but have been shown in several studies to be associated with increased breast cancer risk would identify another 4/112 (3.6%) of mutation carriers (MLH1 = 3, MSH2 = 1). This evidence concerns the gene MSH2 and Lynch syndrome.