Presentation
Gradual lower limb symptoms.
Patient Data
Age: Adult
From the case:
Spinal arteriovenous fistula: S1 origin
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Sagittal T2

The cord demonstrate high T2 signal and demonstrates enlarged flow voids on the surface of the cord.
From the case:
Spinal arteriovenous fistula: S1 origin
Frontal

Up and over injection into left iliac system demonstrates an S1 radicular artery feeding a dAVF.
Case Discussion
Spinal dAVF arising in this case from the S1 radicular artery/conus artery, illustrating the point that the site of origin of the fistula can be at any level, remote from the flow voids and that extensive spinal angiography is often needed.