Possible unilateral facet fusion and spinal stenosis on MRI in 2010: back pain. There is right hemilumbarization of S1. There is straightening of the lumbar spine alignment in the sagittal plane, but no evidence of spondylolisthesis. There is mild loss of disc space height and fluid signal at L4-5 and L5-S1 associated with mild disc bulges and facet hypertrophy that results in up to moderate spinal canal and mild bilateral neural foraminal narrowing at L5-S1. The vertebral body heights are preserved. There is patchy fatty infiltration the bone marrow of the lower lumbar vertebrae. The imaged portions of the spinal cord are unremarkable. The paravertebral soft tissues are unremarkable.
1. Right hemilumbarization of S1. 2. Degenerative spondylosis in the lower lumbar spine with up to moderate spinal canal and mild bilateral neural foraminal narrowing at L5-S1.