ANTENATAL DIAGNOSIS OF TETRALOGY OF FALLOT WITH ABSENT PULMONARY VALVE ACCOMPANIED BY HYDROPS-FETALIS AND POLYHYDRAMNIOS

The case presented is an antenatal diagnosis of tetralogy of Fallot wi th absent pulmonary valve which was accompanied by hydrops fetalis and polyhydramnios with an absent stomach echo. Absent pulmonary valve wa s diagnosed by a cystic, pulsatile, aneurysmal dilatation of pulmonary arteries and a relatively small pulmonary valve annulus without a def inite valve echo, in which a typical to-and-fro flow pattern was detec ted by the Doppler flow analysis. We will discuss some plausible roles of the grossly enlarged pulmonary arteries on hydrops fetalis and pol yhydramnios.