Impaired left L4 sensory deficits. Evaluate for impingement. There are 4 lumbar type vertebral bodies with a fifth transitional segment labeled L5 for the purposes of study. There is articulation of the bilateral transverse processes of L5 with the sacrum. Vertebral body heights are within normal limits. Alignment is within normal limits. Bone marrow signal is benign with scattered foci of T1 hyperintensity compatible with focal fat or hemangiomas. 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: Minimal disc bulge. No spinal canal or neural foraminal stenosis.L5-S1: No significant disc disease. No spinal canal or neural foraminal stenosis.Paraspinous soft tissues are within normal limits.
1. There is no significant spinal canal or neural foraminal stenosis at any level in the lumbar spine. Specifically, no evidence of L4 nerve impingement in the spinal canal or neural foramen.2. Transitional anatomy with partial sacralization of the L5 vertebral body incidentally noted.