Mirror Syndrome, also known as Ballantyne syndrome or triple edema, is a maternal pregnancy complication characterized by preeclampsia that presents in conjunction with hydrops fetalis. Preeclampsia is a maternal complication characterized by high blood pressure, the presence of protein in urine, swelling, and water retention. This maternal complication mirrors the swelling and fluid retention present in either the fetus or the placenta (hydrops fetalis). Mirror syndrome is associated with a wide range fetal anomalies and malformations. Mirror syndrome is a rare and potentially life-threatening complication, and the only treatment is the immediate delivery of the baby and placenta.