Dictionary of Fertility Terms

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Monochorionic-Diamniotic Twins

Monochorionic-diamniotic (MCDA) twins are twins that share a placenta but have their own amniotic sac. They are almost always monozygotic, meaning that they come from one egg that is fertilized by one sperm, and therefore are identical.Monochorionic-diamniotic twins occur in 0.3% of all pregnancies...... View the rest of the term

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