This is a rare case of a twin pregnancy comprising a live fetus and a complete hydatidiform mole.

Case reports of this condition report a high rate of complications, including heavy PV bleeding, pre-eclampsia, intrauterine fetal death or growth restriction and pre-term birth. In this case there was mild IUGR and prematurity but no other early fetal or maternal complications.

The mother will undergo ongoing monitoring for recurrence of gestational trophoblastic disease.