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Vascular Malformations Smith 12-12-2012 - Inova Health System

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2/8/20<strong>12</strong><br />

Cavernous Malformation: Imaging<br />

• Little or no mass effect<br />

– Unless complicated by<br />

hemorrhage<br />

• May have internal areas<br />

of thrombosis or<br />

hemorrhage<br />

– Peripheral hemosiderin<br />

causes T2 shortening<br />

resulting in a black<br />

“halo” around the lesion<br />

T2<br />

Cavernous Malformation<br />

T2<br />

Cavernous Malformation<br />

NECT<br />

CT T1+Gd Findings<br />

-Negative : 30-50%<br />

-40-60% Ca++<br />

-No mass effect<br />

-Surrounding brain<br />

normal<br />

-Little or no enhance<br />

-CTA usually negative<br />

17

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