Monochorionic diamniotic twin pregnancy
Ultrasound for confirmation of pregnancy and dating.
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One gestational sac with 2 yolk sacs , 2 fetal poles with cardiac activity.
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 twins and there was positive twin pregnancy history on patient's paternal side.