Answer and Explanation 4

4.    The correct answer is D.  Cowden's Syndrome in not a risk factor for colon cancer.  They will frequently have multiple hamartomas but not colon cancer.  Gardner's Syndrome is a genetic disorder that has a 100% chance of developing colon cancer.  Having a personal history of breast, ovarian, or uterine cancer is a risk factor for developing colon cancer.  Ulcerative colitis and Crohns Disease are both risk factors for the development of colon cancer.