On the axial scans, the lesion enhances with gadolinium. On the left lower image, one can clearly see that this lesion is extradural. On the parasagittal scan on the right, note the normal nerve roots ...

Spinal Cord - Neuromodulation through sacral nerve roots 2 to 4 with a Finetech-Brindley sacral posterior and anterior root stimulator Skip to main content Thank you for visiting nature.com.