In 2015, Sawyer et al. reported biallelic BRCA1 mutations (p.Ser198Argfs*35 and p.Arg1699Trp) in a woman with multiple congenital anomalies consistent with a FA‐like disorder (phenotype subsequently referred to as FANCS, MIM# 617883) and BC at the age of 23 years (Sawyer et al., 2015). This evidence concerns the gene BRCA1 and breast cancer.