Lower back pain Five lumbar type vertebral bodies are present. Vertebral body heights are within normal limits. There is mild straightening, alignment is otherwise within normal limits. Bilateral L4 spondylolysis noted as seen on recent CT. Bone marrow signal is benign with fatty signal change noted involving the pedicles at the L4 level. The conus medullaris is normal in position.Individual levels as described below:L1-L2: No significant disc disease. No spinal canal or neural foraminal stenosis.L2-L3: No significant disc disease. No spinal canal or neural foraminal stenosis.L3-L4: No significant disc disease. No spinal canal or neural foraminal stenosis.L4-L5: Diffuse disc desiccation and bulge, with dorsal annular fissure and central disc extrusion. Partial effacement of the right lateral recess. No significant central spinal canal stenosis. Mild bilateral neural foraminal stenosis.L5-S1: Diffuse disc desiccation and bulge, with dorsal annular fissure and central disc extrusion extending slightly inferiorly. No significant spinal canal stenosis. Minimal bilateral neural foraminal stenosis.Paraspinous soft tissues are within normal limits.
1. Bilateral L4 spondylolysis as seen on recent CT. No spondylolisthesis.2. Small disc extrusions at the L4-L5 and L5-S1 levels. Minimal to mild foraminal narrowing at these levels. No significant central spinal canal stenosis at any level.