Twin Reversed Arterial Perfusion Sequence in Dichorionic Triamniotic TripletPregnancy: Case Report

Twin reversed arterial perfusion sequence (TRAP) is a rare complication of spontaneous Dichorionic triamniotic triplet pregnancy and only few cases are documented. We report a case of twin reversed arterial perfusion (TRAP) sequence in a dichorionic triamniotic triplet spontaneous pregnancy, which was diagnosed at 27 weeks of gestation by four-dimensional ultrasound and revealed. The acardiac twin with omphalocele and the pump twin with cleft lip and palate. It highlights the risk of monochorionicity-associated morbidity in dichorionic triamniotic triplet pregnancies and role of four-dimensional ultrasound for diagnosis of trap and congenital anomalies.