Prenatal Diagnosis of Fetal Umbilical Vein Varix in An Intracytoplasmic Sperm Injection Conception: A Case Report

Varix of the umbilical vein is a rare entity. we report a case of fetal intraabdominal umbilical vein varix (fiuv) diagnosed by color doppler ultrasonography at 24 weeks of gestation. this case had normal ultrasound at 13–19 weeks. no other anomalies were detected in subsequent evaluations by ultrasonography and echocardiography. eventually the fetus at 30 weeks’ gestation was affected by hydrops and intrauterine fetal death occurred at 31 weeks’ gestation.