Ovarian cancer is a genetically heterogeneous disease, with germline mutations inBRCA1, BRCA2, MLH1, MSH2, MSH6,PMS2, RAD51D, RAD51C, BRIP1 andPALB2 all associated with an inherited predisposition (Senter et al, 2008; Bonadonaet al, 2011; Loveday et al,2011; Pelttari et al, 2011;Rafnar et al, 2011; Loveday et al, 2012; Turnbull etal, 2014; Xiao et al,2014). This evidence concerns the gene BRCA2 and ovarian cancer.