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Colon cancer develops, in most cases, from benign colon polyps. The progression from benign polyp to malignancy takes place slowly with the consensus that it takes about 10 years. If there are no polyps, there would be no colon cancer. Most benign polyps cause no symptoms to announce their presence and are discovered by routine colonoscopy, which should begin at age 50 (45 in African Americans). The...
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