How genetic testing can predict breast cancer risk Thu, 10/31/2024 - 4:00am While most cancer happens by chance, about 5-10% of cases are hereditary. Hereditary cancers are caused by a harmful variant ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about How genetic testing can predict breast cancer risk Tags: CampCountyNow.comPittsburg Gazette