Germline mutations of the breast cancer susceptibility genes 1 and 2 (BRCA1/2) account for the majority of familial breast and ovarian cancers (Antoniou et al., 2003, Ford et al., 1998, King et al., 2003, Metcalfe et al., 2010, Nielsen et al., 2016). This evidence concerns the gene BRCA1 and ovarian cancer.