Low Rates of Cancer or High-Grade Dysplasia in Colorectal Polyps Collected From Computed Tomography Colonography Screening

Small (6-9 mm) polyps rarely contained high-grade dysplasia (0.4%); none was malignant. The malignancy rate for large (1-2 cm) colorectal polyps was less than 1%. These findings indicate the potential for less aggressive management of lesions detected by CTC.