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 />
Developmental Venous Anomaly (DVA)<br />
• May represent anatomic<br />
variant<br />
– Seen in up to 3% of<br />
autopsies<br />
• Enlarged medullary<br />
veins<br />
• Drain into dural sinus or<br />
deep ependymal vein<br />
• Usually solitary<br />
• “Medusa head” or “palm<br />
tree”<br />
Developmental Venous Anomaly<br />
• Isolated or associated with cavernous<br />
angioma<br />
• Hemorrhage unusual<br />
T1+Gd<br />
DVA Imaging: CT<br />
• Calcification & ischemia may occur in the region<br />
drained most likely due to chronic venous<br />
obstructive disease<br />
–Rare<br />
NECT CECT CECT<br />
19
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