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Figure 1: MRI immediately following neurologic deficits after spinal anesthesia and at 3 months follow-up. (a) T2-weighted (T2W) sagittal image of the lower dorsal and lumbosacral cord showing hyperintensities with cord edema at presentation; (b) sagittal T2W image at follow-up after 3 months showing decreased signal changes and edema; (c) T2W axial image of the lumbar cord demonstrating hyperintensity with cord edema at presentation; (d) T2W axial image of the follow-up scan after 3 months with hyperintensity within the cord with reduced cord edema; and (e) T2W axial image of the lumbar cord revealing clumped nerve roots suggestive of arachnoiditis 3 months after presentation.

Figure 1: MRI immediately following neurologic deficits after spinal anesthesia and at 3 months follow-up. (a) T2-weighted (T2W) sagittal image of the lower dorsal and lumbosacral cord showing hyperintensities with cord edema at presentation; (b) sagittal T2W image at follow-up after 3 months showing decreased signal changes and edema; (c) T2W axial image of the lumbar cord demonstrating hyperintensity with cord edema at presentation; (d) T2W axial image of the follow-up scan after 3 months with hyperintensity within the cord with reduced cord edema; and (e) T2W axial image of the lumbar cord revealing clumped nerve roots suggestive of arachnoiditis 3 months after presentation.