Low back pain. There is a background of congenital spinal canal narrowing. There is also multilevel degenerative spondylosis. At L2-3, there is a slight disc bulge with minimal bilateral neural foraminal stenosis, but no significant spinal canal stenosis. At L3-4, there is a mild posterior osteophyte disk complex with bilateral facet arthropathy and ligamentum flavum thickening with moderate spinal canal stenosis and bilateral foraminal narrowing. At L4-5, there is a small disc herniation and a subcentimeter right facet joint synovial cyst effaces the right lateral recess, with impingement upon the cauda equina nerve roots in this area. At L5-S1, there is bilateral facet arthropathy and ligamentum flavum thickening with mild-to-moderate bilateral foraminal narrowing. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. The spinal cord displays normal signal and morphology. The paravertebral soft tissues are unremarkable.
Congenital narrowing of the lumbar spinal canal with superimposed degenerative spondylosis that is most pronounced at L3-L4, where there is moderate central spinal canal stenosis and at L4-5, where a right facet joint synovial cyst and disc herniation efface the right lateral recess.