Results Canceration was found in 25of 70patients with villousadenomas(35.7%).
结果25例（35.7%）直肠绒毛状腺瘤已发生癌变。
2
Results:Postoperative pathology showed that, of the 44 patients, 17 were tubulo-villous adenoma with epithelial displasia, including 1 multiple adenomas;