Vein of Galen malformation
Tertiary follow-up scan at 32 weeks of gestation
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Greyscale ultrasound image shows a prominent anechoic, midline structure within the fetal head. Doppler assessment demonstrates prominent, turbulent flow within it, with a low resistance waveform.
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Antenatal ultrasound at 32 weeks gestation demonstrates an elongated, anechoic midline structure which extends posteriorly toward the occiput. There is turbulent, low resistance flow on colour Doppler. The features are in keeping with a vein of Galen malformation.
There were no features of fetal hydrops in this case, however this is the major complication that is looked fo in the follow up of such patients.