AJR 2009;193:40-46
Perry J. Pickhardt, David H. Kim
OBJECTIVE. The purpose of this article is to provide a timely update on a variety of key polyp topics to construct a proper framework for physicians who are interested in providing CT colonography screening as a clinical service.
CONCLUSION. As the medical community considers the expansion of CT colonogra¬phy for screening, we believe it is prudent to update and review several key concepts regard¬ing colorectal polyps. In particular, it is important to replace the older literature derived from high-risk and symptomatic cohorts with the wealth of newer and more applicable data from average-risk and asymptomatic screening cohorts. Familiarity with current concepts regard¬ing flat (nonpolypoid) lesions and the natural history of small colorectal polyps is also vital to the effective application of this technique.