34-year-old male. Severe low back pain. Normal MRI. Thoracic spine: Alignment is anatomic. Vertebral body heights and intervertebral disk spaces are preserved.Lumbar spine: Minimal retrolisthesis of L4; alignment is otherwise anatomic. Vertebral body heights and intervertebral disk spaces are preserved. Spina bifida occulta affects L4 and L5, also seen on prior MRI.
No evidence of a compression fracture. Minimal retrolisthesis of L4.