[Importance of prenatally diagnosed portosystemic vascular shunts in clinical outcomes].

Unlabelled: Portosystemic venous shunts (PSVS) are malformations that result from abnormal communications between the portal and hepatic veins or inferior vena cava. Prenatal diagnosis is made by evaluating the fetal venous circulation and it is classified as intrahepatic and extrahepatic, with different evolution and complications.

Objective: To report two cases of prenatal diagnosis of portosystemic vascular shunts and review the importance of this rare pathology in its neonatal and pediatric evolution.