(REUTERS) - Screening for mutations in a gene known as CHEK2 may help determine a woman's odds of breast cancer if the disease runs in her family, according to a Polish study.
Researchers led by Cezary Cybulski of the Pomeranian Medical University in Szczecin estimated that a woman who carries a CHEK2 mutation would have a 34 per cent risk of developing breast cancer if her mother or sister had the disease.