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.
Extrachorial placentation is seen as a thickening of the chorionic plate without blood vessels. An edematous placenta can present in association.
- 1. Sabine Dekan, Nina Linduska. Normal and Pathological Placental Development: MRI and Pathology. (2020) doi:10.1007/174_2010_61