Vein of Galen aneurysm

Definition

Vein of Galen aneurysmal malformation (VGAM) is a congenital vascular malformation characterised by dilation of the embryonic precursor of the vein of Galen. It is a sporadic lesion that occurs during embryogenesis. Cardiac insufficiency of variable severity is the principle manifestation that leads to detection of the malformation in newborns.

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