DESCRIPTION Stacy Martin says genetic testing saved her life.   The testing indicated she had the CDH1 mutation.  The mutation gave her an 80 percent chance of getting gastric cancer and a 60 percent chance of breast cancer.  She opted for a prophylactic total gastrectomy to remove her stomach and addressed the possibility of breast cancer with a bilateral mastectomy.  Without a stomach, Stacy has had to change the way she eats, requiring food every two hours, and having to c