Oncologist Dr. Lawrence Piro from the Angeles Clinic and Research Institute describes how a gastrectomy, or the removal of the stomach, is used as a means to prevent gastric cancer.

How far would you go to save your life or the life of someone you love? Meet a family who has taken drastic steps to prevent the cancer that runs rampant in their genes. And, Survivor star Ethan Zohn in the battle of his life.