Dystrophic intracranial calcification: CT evidence of 'cerebral steal' from arteriovenous malformation.
Two cases of dystrophic intracranial calcification due to arteriovenous malformations (AVM) are reported. The characteristic distribution is in the watershed areas and away from the AVM. Deposition of calcium on ischaemic brain tissues as a result of 'cerebral steal' by the AVM is the probable pathogenetic mechanism.
University Department of Medicine, Queen Mary Hospital, Hong Kong.
Y L
YL
Yu
E K
EK
Chiu
E
E
Woo
F L
FL
Chan
W K
WK
Lam
C Y
CY
Huang
P W
PW
Lee
D000328:Adult; D002545:Brain Ischemia / Q000000981:diagnostic imaging; D002114:Calcinosis / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D002544:Cerebral Infarction / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed