- Etiology: failure of closure of posterior neural tube
- Imaging: thick filum terminale, low conus medullaris (conus should be above L2-L3 disc), can still have tethered cord if conus above L2-L3 disc but there is fatty infiltration of filum terminale
- Clinical: occult skin covered spinal dysraphism, most mild dysraphism
Radiology Cases of Tethered Cord
