 The last well formed disk space is referred to as L5-S1. There is straightening of lumbar lordosis. There is minimal grade 1 retrolisthesis of L5 on S1. There is loss of T2 disk signal at L3-4, L4-5 and L5-S1 with moderate loss of disk height at L5-S1. The osseous marrow signal is benign. There is a high T1 signal focus along the left aspect of the L5 vertebral body superiorly likely representing focal fat versus hemangioma. The conus terminates at L1-2. The conus shows normal caliber and signal.L1-2: No disk herniation or spinal stenosis.L2-3: Mild disc bulge with mild bilateral neural foraminal narrowing. No significant spinal canal narrowing. L3-4: Right foraminal and far lateral disk protrusion with annular fissure, diffuse disk bulge and mild bilateral facet arthrosis causing severe right neural foraminal stenosis and mild left neural foraminal stenosis. No spinal canal stenosis.L4-5: Diffuse disk bulge, bilateral facet arthropathy and ligament flava thickening causing severe bilateral neural foraminal stenosis and minimal spinal canal stenosis. There is distension of the facet joints.L5-S1: Diffuse disk bulge asymmetric to the right with tiny central disk protrusion, mild bilateral facet arthropathy causing moderate bilateral (right greater than left) neural foraminal stenosis.
1. Multilevel lumbar spondylosis worst at L4-5 and L5-S1 where there is moderate to severe bilateral neural foraminal stenosis. No high grade spinal canal stenosis in the lumbar spine.2. Facet arthropathy particularly at L4-5 which may be contributing to patient' s low back pain. 