Female, 58 years old, with left-sided lumbar spine mass. Spinal alignment is anatomic. Vertebral body height and morphology are within normal limits. No pathologic marrow replacement or enhancing marrow lesions are seen.The visualized distal spinal cord, conus and nerve roots of the cauda equina are unremarkable. No pathologic spinal cord or leptomeningeal enhancement is seen. No epidural abnormalities are suspected.Apart from some redundancy of the skin in the lower lumbar region, no masslike lesion is identified within the superficial or deep soft tissues. However, inflammation of the left L4-5 facet joint is seen, likely degenerative/osteoarthritic in nature.L1-2: Unremarkable. L2-3: Unremarkable. L3-4: Mild facet arthropathy. Minimal disc bulging with a small left foraminal annular fissure. No significant spinal canal stenosis. No significant foraminal narrowing. L4-5: Moderate facet arthropathy with edema and enhancement on the left indicating inflammation. Mild disc bulging with bilateral foraminal annular fissuring. No significant spinal canal stenosis. Mild bilateral foraminal narrowing. L5-S1: Moderate facet arthropathy. Mild bulging disc with a small central disc protrusion. No significant spinal canal stenosis. No significant foraminal narrowing.
No masslike lesion is evident within the posterior soft tissues of the lumbar region. However, the left L4-5 facet joint appears degenerated and inflamed which may be contributing to the patient's symptomatology. Otherwise, relatively mild degenerative/osteoarthritic findings are seen with no evidence of any high-grade spinal canal or foraminal stenosis.