Vein of Galen malformation

Case contributed by Alexandra Stanislavsky


Tertiary follow-up scan at 32 weeks of gestation.

Patient Data

Age: 32 weeks' gestation
Gender: Female

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.

Case Discussion

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 color 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 for in the follow up of such patients.

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