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Mural-type vein of Galen malformation (lateral view of left vertebral artery injection)

Lateral view of a left vertebral artery injection demonstrating a mural type vein of Galen malformation, fed by 2 dilated posterior cerebral artery choroidal branches. Note the difference between the choroidal type vein of Galen malformation, which had multiple different feeding arteries and the mural type, which has only 2. (Contributed by Dr. Steven Chang.)