Low back and bilateral leg pain. There is a central disc extrusion at L4-5 with associated impingement of the bilateral descending nerve roots in the lateral recesses. There is no significant disc herniation at the other levels of the lumbar spine. The vertebral column alignment is within normal limits. The vertebral body heights are preserved. The vertebral bone marrow signal is unremarkable. The spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable.
Central disc extrusion at L4-5 with associated impingement of the bilateral descending nerve roots.