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Dichorionic/diamniotic twin pregnancy with two separate placentas

Dichorionic/diamniotic twin pregnancy with two separate placentas
Twin pregnancy at 18 weeks and 0 days gestation. The placenta of twin B (placenta B) is located anteriorly. The placenta of twin A (placenta A) is located posteriorly.
Courtesy of Stephen T Chasen, MD.
Graphic 131108 Version 2.0