Female, 68 years old, with psoas abscess undergoing treatment. Compare to prior study to assess for resolution. Findings are again seen reflecting prior posterior instrumented fusion from L3 through L5 as well as interbody fusion at L3-4 and L4-5. Previously seen rim-enhancing fluid collections within the posterior operative soft tissues and within the bilateral psoas muscles are not clearly appreciated and have likely resolved or nearly completely resolved.Spinal alignment is anatomic. Vertebral body height and morphology are within normal limits. No evidence of pathologic marrow edema, replacement or enhancement is seen. The visualized distal spinal cord and conus are within normal limits. The cauda equina is unremarkable where not obscured by metallic artifact.L1-2: Facet arthropathy. Minimal disc bulging. No significant spinal canal or foraminal stenosis. No interval changes. L2-3: Facet arthropathy. No significant spinal canal or foraminal stenosis. No interval changes. L3-4: Marked facet arthropathy. Ligamentum flavum thickening. Mild disc bulging. Mild generalized spinal canal stenosis. The left lateral recess remains narrowed. Left foraminal narrowing. No interval changes. L4-5: Marked facet arthropathy. Ligamentum flavum thickening. Mild bulging disc. Mild spinal canal stenosis. Moderate to severe right foraminal narrowing. No interval changes. L5-S1: Facet arthropathy. Minimal disc bulging. No significant spinal canal stenosis. No significant foraminal narrowing. No interval changes.
1.Redemonstrated is evidence of L3-L5 posterior and interbody instrumented fusion.2.Since the prior examination, abscesses within the posterior operative soft tissues and the psoas muscles have resolved or nearly completely resolved. No new abnormalities are detected.