Vascular Malformations Smith 12-12-2012 - Inova Health System
Vascular Malformations Smith 12-12-2012 - Inova Health System
Vascular Malformations Smith 12-12-2012 - Inova Health System
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2/8/20<strong>12</strong><br />
Vein of Galen Malformation (VOGM)<br />
• Arteriovenous fistula involving<br />
aneurysmal dilatation of<br />
median prosencephalic vein<br />
(MPV)<br />
• Neonatal > infant<br />
presentation<br />
– Rare adult presentation<br />
• Classification:<br />
– Choroidal: Multiple feeders from<br />
pericallosal, choroidal, &<br />
thalmoperforating arteries<br />
– Mural: Few feeders from<br />
collicular or posterior choroidal<br />
arteries<br />
Drains MPV in 50%<br />
Falcine Sinus<br />
T1<br />
VOGM<br />
• Newborns: Most common extracardiac cause of<br />
high-output congestive heart failure<br />
• < 1% of cerebral vascular malformations<br />
CECT<br />
Venous Pouch<br />
VOG Malformation: Prenatal US<br />
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