PALB2 and breast cancer: Hereditary Breast and Ovarian Cancer (HBOC) patients are predisposed to developing BC mainly due to germline variants in DNA double‐strand break repair genes, such as BRCA1, BRCA2, PALB2, BARD1, ATM, CHEK2, TP53, among others.16, 17, 18, 19, 20, 21