Difference between revisions of "Twin placentas"

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==Monozygotic vs. dizygotic==
==Monozygotic vs. dizygotic==
If no membrane between the fetuses.
===Monoamniotic-monochorionic (MoMo)===
*No membrane between the fetuses.
*Split at approximately 7th day.
*Split at approximately 7th day.
*Monozygotic twins.
*Monozygotic twins.


===Diamnionic-monochorionic (DiMo)===
===Diamniotic-monochorionic (DiMo)===
*No interposed chorion.<ref name=Ref_H4P2_979>{{Ref H4P2|979}}</ref>
*No interposed chorion.<ref name=Ref_H4P2_979>{{Ref H4P2|979}}</ref>
*Always monozygotic.
*Always monozygotic.
*Highest risk of TTTS (twin-to-twin transfusion syndrome).
*Highest risk of TTTS (twin-to-twin transfusion syndrome).


===Diamnionic-dichorionic (DiDi)===
===Diamniotic-dichorionic (DiDi)===
*Most dizygotic (70%), may be monozygotic (30%).
*Most dizygotic (70%), may be monozygotic (30%).
*If monozygotic -- split before 3 days.
*If monozygotic -- split before 3 days.
Retrieved from "https://librepathology.org/wiki/Twin_placentas"