Lumbar radiculopathy. There is 7 mm of anterolisthesis of L4 on L5. There is a superimposed disc bulge, bilateral facet hypertrophy with slight effusions, and ligamentum flavum thickening, which results in severe left and moderate right neural foraminal narrowing and mild to moderate spinal canal stenosis, with a greater degree of lateral recess effacement on the left. There is also a small synovial cyst along the inferior aspect of the right L4-L5 facet joint. There is a mild disc bulge, facet hypertrophy, and ligamentum flavum thickening at L5-S1, with mild bilateral neural foraminal narrowing, but no significant spinal canal narrowing. There is also a punctate synovial cyst along the inferior aspect of the right L5-S1 facet joint. There is a mild disc bulge, facet hypertrophy, and ligamentum flavum thickening at L3-L4, with mild left and slight right neural foraminal narrowing, but no significant spinal canal narrowing. There are also a small synovial cysts along the inferior aspect of the right L3-L4 facet joints bilaterally. The imaged portions of the spinal cord are unremarkable. There is trace disc bulging at L2-3, without significant neural foraminal or spinal canal narrowing. T12 through L2 are unremarkable. The conus medullaris is located at the L2-3 level. The bone marrow is unremarkable, including scattered foci of focal fat. The paraspinal soft tissues are unremarkable, aside from dependent edema in the posterior subcutaneous tissues. There is a small right renal probable cyst.
Multilevel degenerative lower lumbar spondylosis, which is most pronounced at L4-5, which is conjunction with grade 1 anterolisthesis, results in severe left and moderate right neural foraminal narrowing and mild mild to moderate spinal canal stenosis.