Conclusion The moving echoes and local hypoechoic areas in the intervillous space before 10 weeks of gestation is important ultrasonographic features of early inevitable abortions.

• 结论胎盘绒毛间隙弥漫移动点状回声和胎盘中央低回声区（母池）是孕10周前早期难免流产的重要超声表现。