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Figure e-2 : Algorithm for the diagnosis of arteriovenous fistula

Figure e-2 : Algorithm for the diagnosis of arteriovenous fistula. Patient presents with signs and symptoms of myelopathy. Spine MRI. Consider medical workup here: lumbar puncture, brain MRI, HIV, RPR, HTLV, B12, copper, etc. Spinal cord compression?. Yes. Surgical intervention. No.

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Figure e-2 : Algorithm for the diagnosis of arteriovenous fistula

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  1. Figure e-2: Algorithm for the diagnosis of arteriovenous fistula Patient presents with signs and symptoms of myelopathy Spine MRI Consider medical workup here: lumbar puncture, brain MRI, HIV, RPR, HTLV, B12, copper, etc Spinal cord compression? Yes Surgical intervention No T2 hyperintensity AND flow voids? Yes Spinal angiography No T2 hyperintensity only? Neither flow voids nor T2 hyperintensity? Flow voids only? Nonspecific. Maintain low threshold to pursue spinal angiography if medical workup is normal Spinal angiography Spinal angiography likely unnecessary. Pursue medical workup.

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