• Stephan A Munich, Chandan Krishna, Marshall C Cress, Gurmeet S Dhillon, John Pollina, and Elad I Levy.
• Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Gates Vascular Institute at Kaleida Health, Buffalo, New York, USA.
• World Neurosurg. 2019 Aug 1; 128: 328-332.

BackgroundSpinal dural arteriovenous fistulas are the most common spinal vascular pathology, accounting for up to 70% of spinal vascular malformations. They most commonly present with insidious and progressive myelopathy and bowel, bladder, and sexual dysfunction. Although noninvasive imaging (e.g., magnetic resonance imaging, magnetic resonance angiography) may suggest the presence of a spinal arteriovenous fistula (AVF), the diagnosis requires confirmation with spinal angiography.Case DescriptionA 65-year-old woman presented with progressive myelopathy. Traditional spinal angiography of the paired radicular arteries failed to demonstrate any vascular malformation. However, injection of the right internal iliac artery demonstrated an AVF arising from the artery of Desproges-Gotteron with retrograde venous drainage to the upper thoracic region.ConclusionsSelective transarterial catheterization and embolization with n-butyl cyanoacrylate resulted in complete occlusion of the AVF. Clinical improvement was also noted on postprocedural day 1. This case highlights the importance of internal iliac injections as a critical component of spinal angiography during an evaluation for vascular malformation.Copyright © 2019 Elsevier Inc. All rights reserved.

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