Fetal diagnosis of lethal dysfunction of the right heart in three siblings.

A woman, having already delivered one child, underwent fetal echocardiography during three subsequent pregnancies. All three showed enlargement and poor function of the right-sided chambers. The first was still-born, the second died as a neonate, while the third pregnancy was terminated. Pathological examination revealed the same findings in each fetus, possibly representing a variation of Uhl's anomaly, or alternatively a hitherto unrecognised cardiomyopathic process.