Complete hydatidiform mole and coexisting normal fetuses. A report of two cases with contrasting outcomes.

Multiple pregnancies consisting of a complete hydatidiform mole and coexisting fetuses are relatively rare but may become more common due to the increasing use of ovulation-induction agents.We report on a twin and a triplet pregnancy, conceived using clomiphene citrate, with contrasting outcomes. The twin pregnancy resulted in a term delivery of a healthy singleton and the triplet pregnancy in a termination at 17 weeks followed by the development of choriocarcinoma.The few cases available suggest that a subgroup of complete moles follows a more benign course and can be managed conservatively, allowing the pregnancy to go to term with appropriate follow-up, whereas other cases follow a more aggressive course. Larger case series are needed to develop definitive protocols.