Monochorionic diamniotic twin pregnancy


Findings suggest twin pregnancy of monochorionic diamniotic (MCDA) type. Although the intertwin membrane is not clearly seen, the presence of two yolk sac is highly suggestive of an MCDA (rather than MCMA) pregnancy.

In this case, there was relevant family history, as the patient herself is one of the twins and there was positive twin pregnancy history on patient's paternal side.