Legend Sagittal T2 weighted MRI images demonstrate loss of height and signal at L5 -- S1 disc. Low signal is also present posterior to the L5 -- S1 disc which is larger in the off-midline images.

Legend Sagittal and axial T1 and axial T2 (bottom right) weighted images show a mass in the anterolateral spinal canal that displaces the thecal sac laterally and impinges upon the right S1 nerve root. Note that the L-5 nerve root has already exited through the neural foramen (top right). Key words: mri lumbar degenerative

Spine Diagnosis: Extruded disk