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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 28:1155-1156, June-July 2007
DOI 10.3174/ajnr.A0504
© 2007 American Society of Neuroradiology

Case Report
HEAD & NECK

Upper Extremity Arteriovenous Dialysis Fistula Resulting in Cavernous Sinus Arterialized Blood Flow

R.R. Watson^a and C. Russo^a

^a From Clinical Radiologists, SC, Southern Illinois University School of Medicine, Department of Radiology, Memorial Medical Center, Springfield, Ill

Please address correspondence to Ryan Watson, MD, Department of Radiology, Southern Illinois University School of Medicine, Memorial Medical Center, 701 N First St, Springfield, IL 62781; e-mail: watsonr{at}clinicalradiologist.com

SUMMARY: Arterialized blood flow in the cavernous sinus may result from carotid-cavernous fistula or dural venous fistula. We encountered an unusual case of arterialized blood flow in the cavernous sinus on MR angiography resulting from arterialized retrograde venous flow in the internal jugular vein. This abnormal flow originated from an upper extremity dialysis arteriovenous fistula in the presence of central venous occlusion. The patient's symptoms of visual disturbance resolved after the central venous occlusion was treated with stent placement.