Three-dimensional colour Doppler of ductus venosus agenesis
Case report
A 27-year-old primigravida attended our institution for firsttrimester screening sonography. Transvaginal sonogram revealed a cystic lesion with septations measuring 3.6 × 2.4 cm in the fetal neck, suggestive of a cystic hygroma (Fig. 1A). In addition, there was bilateral pleural effusion with generalised subcutaneous oedema suggestive of hydrops fetalis (Fig. 1B). Colour Doppler sonography revealed the umbilical vein draining into the portal sinus with non-visualisation of the DV, which would connect the portal sinus with the inferior vena cava (IVC) (Figs 1C and 1D). Hence, a diagnosis of agenesis of DV with intrahepatic drainage was made. There were no other associated anomalies. The couple was offered fetal karyotyping. They opted for termination of the pregnancy.
Karyotype of the products of conception post termination of the pregnancy revealed 45XO karyotype consistent with diagnosis of Turner’s syndrome....
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