Abstract
We present a case of fetal tricuspid valve dysplasia (TVD) and pulmonary atresia,
diagnosed during a routine obstetric ultrasound scan. Serial fetal echocardiographic
evaluations revealed progressively augmented prodigious thickening of the tricuspid
valvular and subvalvular structures, which eventually extensively obliterated the
right ventricle cavity. Thickened dysplastic valve displayed a “cotton-wool” appearance.
Unusual configurations of three vessels in the three-vessel view were also observed
on a consecutive gray scale and color Doppler scans. During pregnancy, the fetus exhibited
satisfactory growth parameters, and complications of progressive hemodynamic compromise
associated with TVD and pulmonary atresia such as grievous hydrops or arrhythmia did
not develop till 39 weeks of gravidity.
Keywords
Dysplasia - non-immune hydrops - pulmonary atresia - tricuspid annulus - tricuspid
regurgitation - tricuspid valve