Low back and thigh pain. Evaluate for lumbar spine pathology. The lumbar spine is in normal alignment, with a normal lumbar lordosis. There is developmental narrowing of the lumbar central spinal canal with shortened pedicles. The vertebral body and disk heights are well-maintained. There is mild disc height loss from L3-4 to L5-S1 with mild disc desiccation throughout the lumbar spine. No worrisome focal marrow signal abnormality is appreciated. The distal spinal cord and conus are within normal limits with the conus terminating at the L2 level. T12-L1: As seen on the sagittal images, there is a mild disc bulge which indents the thecal sac. No significant neuroforaminal stenosis.L1-L2: There is a shallow central disc protrusion with moderate facet hypertrophy and ligamentum flavum thickening. No significant neural foraminal or central canal stenosis.L2-L3: No disc bulge. There is mild to moderate ligamentum flavum thickening but no neural foraminal or central canal stenosis.L3-L4: A disc bulge is noted with moderate ligamentum flavum thickening. This causes mild right neural foraminal stenosis and moderate central canal stenosis. No neural foraminal stenosis is noted on the left.L4-L5: Again seen is a disc bulge more prominent towards the right. There is facet hypertrophy and ligamentum flavum thickening. This results in mild right neuroforaminal stenosis and moderate to severe central canal stenosis. No left neural foraminal stenosis.L5-S1: A mild disc bulge is present with facet hypertrophy and ligamentum flavum thickening. However there is no neural foraminal or central canal stenosis.Incidental note is made of a nonspecific left renal upper pole T2 hyperintense lesion statistically most likely representing a renal cyst. The remaining visualized intra-abdominal and paraspinal soft tissues are unremarkable.
Moderate degenerative changes of the lumbar spine superimposed on developmental narrowing. This is most prominent at the L3-4 and L4-5 levels, with up to moderate to severe central canal stenosis at L4-5.