A new study looked at breast cancer risks in CHEK2 carriers based on family history and found that risks for breast cancer were much higher in those with a family history and additional non-genetic risk factors further modified risks.
To learn more read the article at: https://jamanetwork.com/journals/jamaoncology/article-abstract/2839917
Reference: O’Brien, et al. JAMA Oncol. 2025. Online ahead of print. PMID: 41066089.