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 />
Cavernous Malformation<br />
MRI NECT<br />
-Variable<br />
-”Popcorn ball”<br />
- Surrounding edema in<br />
acute hemorrhage<br />
-Post contrast: minimal/ no<br />
enhance look for DVA!<br />
Angiography: Usually<br />
occult<br />
T2 T1<br />
Cavernous Malformation<br />
• Risk of hemorrhage: 0.25-<br />
0.7%/year<br />
– More common in posterior<br />
fossa lesions<br />
– In patients with prior<br />
hemorrhage annual rate of<br />
rehemorrhage 4.5%<br />
• Treatment:<br />
– Observation: Asymptomatic<br />
or inaccessible lesions<br />
– Surgical excision<br />
– Radiosurgery:<br />
Progressively symptomatic<br />
but surgically inaccessible<br />
T2<br />
Cavernous Malformation<br />
T2<br />
<br />
18
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