HRR alterations involve Fanconi anemia genes (PALB2, FANCA, FANCL, FANCI, FANCC), core RAD genes (RAD50, RAD51, RAD51B, RAD51C) as well as DNA damage response genes (ATM, ATR, CHEK1, CHEK2) (10). The gene discussed is CHEK2; the disease is Fanconi anemia.