Low back pain radiating to the left leg. There is disc desiccation and bulge at L4-L5 with superimposed disc extrusion that extends into the left lateral recess with impingement upon the descending left L5 nerve roots. There is no significant neural foramen stenosis. There are trace effusions in the L4-L5 facet joints bilaterally with an associated subcentimeter posterior right synovial cyst. There is mild loss of the usual lumbar lordosis. The vertebral bone marrow signal is unremarkable. The spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable.
Disc desiccation and bulge at L4-L5 with superimposed disc extrusion that extends into the left lateral recess with impingement upon the descending left L5 nerve roots.