Acute flaccid paralysis in a patient with sacral dimple

Figure 2 Magnetic resonance imaging spine. An intra-spinal and extra-dural cystic lesion of low signal intensity non-contrast sagittal T1-weighted imaging (T1WI) (A), non-contrast axial T1WI (E). It shows an intense marginal enhancement post-contrast sagittal T1WI (B, red arrow) and post-contrast axial T1WI (F, red arrow). The lesion extends up to the cervical spine sagittal T2WI (C) and lateral to the left side of the spinal canal sagittal T2WI (D).