Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Is a congenital arteriovenous malformation with blood shunting from
cerebral arteries into an aneurysmally dilated great vein of Galen
and the straight sinus. The major feeding vessels are the posterior
cerebral artery and its branches the posterior choroidal and
posterior perforating artery.
Pathology:
Not applicable
Imaging Findings:
Chest film shows cardiomegaly with right sided predominance. The
superior mediastinum is widened due to dilation of the
brachiocephalic arteries and veins. Pulmonary vascularity is
frequently normal because of the pulmonary arterial hypertension of
the newborn.
On angiography rapid arteriovenous shunting into a dilated saclike vein of Galen and straight sinus is seen.
DDX:
References:
See References Chapter.
Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
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