Twin pregnancy with one normal fetus and one complete mole

Twin pregnancy with a complete mole and a coexisting healthy fetus is a rare condition. There is increased risk of developing severe complications and development of persistent trophoblastic disease. A 28 years old 2nd gravida, with 1st vaginal delivery reported to the hospital at 20 weeks gestation as a case of dichorionic twin pregnancy. On routine USG, it showed a complete mole with a coexisting live fetus. The patient had features of anemia and severe preeclampsia. After explaining the risk to the patient and bystanders, they requested to terminate the pregnancy. She was induced for the same and delivered a normally appearing fetus. This was accompanied by evacuation of the mole. Diagnosis of complete mole was confirmed by histopathology. Twin pregnancy with a complete mole and a coexisting healthy fetus is a rare condition. The decision regarding management of this condition is difficult due to the various complications associated especially development of choriocarcinoma.