Results:Postoperative pathology showed that, of the 44 patients, 17 were tubulo-villous adenoma with epithelial displasia, including 1 multiple adenomas;
结果：术后病理学诊断显示直肠管状绒毛状腺瘤伴上皮异型增生17例（其中多发性腺瘤1例）；
2
The frequencies of complicating adenoma and multiple polyps in synchronous cases were higher significantly than those in single cases, with the rate of 34.8% and 78.3%, 11.6% and 42.2%, respectively.