Remarkable progress has been made over the past 25 years inunderstanding the biologic aspects of colorectal cancer anddeveloping methods to detect it early or even prevent it entirely1.Colorectal cancer arises from a precursor lesion, the adenomatouspolyp, which forms in a fertile field of epithelial-cell hyperproliferation.This progression involves a multistep process, accompanied byalterations in several suppressor genes, that results in abnormalitiesof growth regulation and has a natural history of 10 to 15 years.Environmental factors and inherited susceptibility have majorroles in this sequence of events1,2. The long natural historyprovides an . . . [Full Text of this Article]
References
Related Letters:
Screening for Colorectal Cancer
Ahlquist D. A., Moertel C. G., McGill D. B., Carey W. D., Achkar E., Perlman R., Budenholzer B., Neugut A. I., Jacobson J. S., Allison J. E., Brown M. L., Mandel J. S., Church T. R., Ederer F., Winawer S. J.
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N Engl J Med 1993;
329:1351-1354, Oct 28, 1993.
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