Evaluate for spinal stenosis. There is a normal lumbar lordosis. The lumbar spine alignment and the vertebral body height appear normal. T12/L1, L1/L2, L2/L3: unremarkable. L3/L4: mild disc bulge; no neuroforaminal compromise or spinal canal stenosis. L4/L5: disc bulge; bilateral facet joint and ligamentum flavum hypertrophy; bilateral facet joint space widening with fluid accumulation on the right and air accumulation on the left; bilateral neuroforaminal compromise; spinal canal stenosis (8 mm in AP). L5/S1: mild disc bulge; no neuroforaminal compromise or spinal canal stenosis. Incidental findings are atrophy of bilateral kidneys and heavy calcification in the abdominal aortic and iliac arteries.
Degenerative disease of the lumbar spine, most pronounced at L4/L5, as detailed above. 