[Portal system obstruction of delayed onset following neonatal Staphylococcus aureus infection].

Two neonates underwent staphylococcal septicemia with multiple intrahepatic abscesses, following umbilical catheterization in one case and due to superinfected heel puncture in the other case. At the first examination, liver ultrasonography showed multiple hypoechogenic areas and assessed patency of the portal vein flow. In spite of clinical, biological and sonographic recovery within the following weeks, portal hypertension due to seemingly late portal vein thrombosis occurred. These clinical reports indicate the need for a protracted echosonographic supervision of neonatal intrahepatic abscesses and portal vein patency before asserting complete recovery.