Extrachorial placenta

Last revised by Henry Knipe on 15 Jun 2020

Extrachorial placenta is a rare type of placenta where the chorionic vascular plate is smaller than the villous tissue, which gets uncovered in the periphery.  

Radiographic features


Extrachorial placentation is seen as a thickening of the chorionic plate without blood vessels. An edematous placenta can present in association.

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