结果（1）从正常绒毛→良性葡萄胎→恶性葡萄胎，MMP-2的阳性率有升高趋势，差异有统计学意义（P〈0.05）。
Results : ( 1 ) The positive expression of MMP - 2 reinforces gradually from normal villus, benign mole to malignant mole which has statistically significance ( P < 0. 05 ).
方法运用扫描电镜技术观察葡萄胎90例（良性6 0例，侵蚀性30例） ，以10例正常早期胎盘绒毛作对照。
METHODS SEMT was performed to observe 90 cases with hydatidiform moles (60 cases with benign and 30 cases with invasive hydatidiform moles) and 10 cases with normal placental villis as the control.
方法运用扫描电镜技术观察葡萄胎90例（良性6 0例，侵蚀性30例） ，以10例正常早期胎盘绒毛作对照。
METHODS SEMT was performed to observe 90 cases with hydatidiform moles (60 cases with benign and 30 cases with invasive hydatidiform moles) and 10 cases with normal placental villis as the control.
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