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Abstract
Spinal dural arteriovenous fistulas are rare abnormal connections of arteries and veins on the surface of the dura. A male presenting with myelopathy, which had a slowly progressive course for about 28 months, was diagnosed by magnetic resonance imaging and selective angiography. After surgical coagulation and excision, his symptoms were mildly improved. We report here on a man who underwent a surgical procedure for his myelopathy that was due to spinal arteriovenous fistula. Although it is unusual, spinal arteriovenous fistula should be considered when making a differential diagnosis of myelopathy.
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Fig. 1A-D.
(A) Coronal and sagittal T2-weighted MRI of the thoracic spine shows marked tortuosity of the perimedullary vessel in upper and midthoracic spine level. (arrow) (B) (Right) Sagittal T2-weighted MRI of the thoracic spine shows fine dotted signal intensities in subdural space and intramedullary hyperintensity within spinal cord. (Left) Sagittal T2-weighted MRI of the thoracolumbar spine shows serpentine signal intensities within spinal cord in lumbar spine area.
Fig. 2.
(A, B) Axial T2-weighted MRI (Right) In midthoracic level, fine dotted signal intensities in subdural space. (Left) In lumbar 3-4th disc level, abnormal dilated intradural medullary vein. (arrow)
Fig. 3.
(A, B) Spinal angiography (A) feeding artery -Adamkiewicz artery comes from left thoracic 11 level. (arrow) (B) Shunt were found at lumbar 3-4th disc level. (arrow)
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