
Аn analysis of the ultrasound diagnosis of extrachorial type of placentation (EPT): placenta circumvallata and placenta placenta marginata is presented. The frequency of prenatal ultrasound detection of EPT was 0.77 % (319/41 626). In the postanatal period EPT was noted in 3.14 %. Issues of ultrasound imaging and low detection of EPT during pregnancy were discussed.
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