ABNORMAL DRAINAGE OF THE UMBILICAL VEIN

A CASE REPORT AND LITERATURE REVIEW

Abstract

This case report presents the evolution of a fetus diagnosed with agenesis of ductus venosus (ADV). The umbilic vein drained directly to the right iliac vein, bypassing the liver. This is a rare condition, for which little has been elucidated about its prognosis and prevalence. The ADV can be related to chromosomal disorders, fetal hydrops, cardiac and extracardiac anomalies. Its prognosis varies according to the adjacent malformations and hemodynamic instabilities. When the umbilical vein drainage is extra-hepatic, the prognosis is determined especially by the level of hemodynamic instability.