Interrupted inferior vena cava and persistent left superior vena cava without heterotaxia in a fetus

Abstract

Presence of systemic venous anomalies including a persistent left superior vena cava to a dilated coronary and interrupted inferior vena cava with azygous continuation are extremely rare in absence of heterotaxia or cardiosplenic syndrome. For this reason, the diagnosis of extracardiac venous anomalies can often be missed in absence of a heterotaxia as was the case in our patient whose prior fetal echocardiogram and the first postnatal echocardiogram read by other pediatric cardiologists failed to detect these anomalies. We report these systemic venous anomalies in a fetus in the absence of heterotaxia and further describe the echocardiographic findings helpful in their detection in-utero.