Risk-reducing hysterectomy at 25 years of age prevents endometrial cancer before 50 years in 15%, 18%, 13%, and 0% of path_MLH1, path_MSH2, path_MSH6, and path_PMS2 carriers and death in 2%, 2%, 1%, and 0%, respectively [13]. The gene discussed is MSH2; the disease is endometrial cancer.