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American Journal of Neuroradiology 27:1076-1078, May 2006
© 2006 American Society of Neuroradiology

Case Report
BRAIN

Subcortical Calcification on CT in Dural Arteriovenous Fistula with Cortical Venous Reflux

T. Metokia, S. Mugikuraa, S. Higanoa, M. Ezurab, Y. Matsumotod, K. Hirayamac and S. Takahashia

a Departments of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
b Neuroendovascular Therapy, Tohoku University Graduate School of Medicine, Sendai, Japan
c Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
d Department of Neuroendovascular Therapy, Kohnan Hospital, Sendai, Japan

Address correspondence to Takahiro Metoki, MD, Department of Diagnostic Radiology, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan

SUMMARY: We report 3 cases of dural arteriovenous fistula (dAVF) with cortical venous reflux (CVR) presenting calcification in the cortico-medullary junction at the bottom of cerebral sulci on unenhanced CT. This likely results from chronic venous congestion with resulting impaired perfusion of the involved parenchyma. dAVF with CVR, which is known to have poor prognosis without treatment, should be included in the differential diagnosis of subcortical calcification on CT.




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