Female 67 years old with Hx of bulging disk Hypoplastic ribs are noted at the T12 level, smaller on the left. There 5 lumbar-appearing vertebrae.6 mm of grade 1 anterolisthesis of L5 on S1. The left-sided L5 pars interarticularis is not well visualized, however, if there is clinical concern for defect, recommend further evaluation with CT lumbar spine. The vertebral body heights are preserved, with a small Schmorl node noted at the inferior L2 endplate. No vertebral body marrow abnormalities noted. Mild loss of disc height at L2-3 with diffuse disc desiccation most prominent in the lower lumbar spine. The distal spinal cord and conus demonstrate normal signal morphology and terminates at the mid L1 level. Incidental nonenhancing T2 hyperintense right renal cyst measuring up to 3.5 x 3.1 cm as well as multiple bilateral subcentimeter parapelvic cysts noted. T11-12: No significant central or foraminal stenosis noted on sagittal images.T12-L1: No significant central or foraminal stenosis.L1-L2: Mild bilateral facet arthropathy without significant central or foraminal stenosis.L2-L3: Mild disc bulging and bilateral facet arthropathy with partial flattening of the ventral thecal sac without significant central or foraminal stenosis.L3-L4: Disc bulging with mild ventral indention of the thecal sac and prominence of the epidural fat. Moderate bilateral facet arthropathy. Mild central and mild bilateral foraminal stenosis.L4-5: Disc bulging and prominence of the epidural fat with moderate bilateral facet arthropathy and ligamentum flavum hypertrophy. Moderate-severe central and mild-moderate bilateral foraminal stenosis.L5-S1: Grade 1 anterolisthesis with uncovering of the disc and disc bulging as well as severe bilateral facet arthropathy causing impingement of the descending left S1 nerve root on the facet joint. There is narrowing of the left lateral recess. Ventral left-sided annular fissure noted. Moderate central and mild left foraminal stenosis.
Spondylosis as described above with moderate-severe central stenosis at L4-5 as well as moderate central stenosis at L5-S1 causing impingement of the descending left S1 nerve root. Correlate clinically for left S1 radiculopathy.