Home > Academic OB/GYN Cases, Obstetrics > Academic OB/GYN Cases: The House of Twins

Academic OB/GYN Cases: The House of Twins

This is a nice photo of a diamniotic/dichorionic placenta, part of a pregnancy involving two separate embryos in the same uterus.

Note the thick intervening membrane and lack of blood vessels traveling between the two placental discs, both characteristic of a di/di placenta.

  1. January 2, 2011 at 11:48 am

    Fascinating! Thank you for posting. Just out of curiosity, are twin placentas always joined, even di/di placentas?

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  2. January 2, 2011 at 1:04 pm

    Technically di/di placentas are separate, but they are always adherent to each other.

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  3. March 6, 2011 at 3:15 am

    Beautiful. I hope I can get to see such things in person too.

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  4. Kelly Keelan
    June 25, 2012 at 12:30 pm

    That is a beautiful pair of placentas!

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  5. March 5, 2017 at 1:52 am

    Can you please explain your “Always adherent to each other” comment? Chorionicity defines the risk of a twin or HOM gestation.
    I don’t see anything else regarding twins & their placentation here on this site.

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