Conclusions Getting the villi of 45-55 days pregnancy by uterine curettage, we can obtain the chorial trophcytes by trypsin or DNA enzyme digest.

结论取人妊娠45～55天刮宫术后的绒毛，甲胰蛋白酶消化可得到绒毛滋养层细胞。

Before the treatment, the diagnostic uterine curettage were performed to see whether the pathologic result is the pute hyperplasia of the endometrium or not.

治疗前均行诊断性刮宫，病理结果为子宫内膜单纯型增生，而复杂型增生不采用此法。