Female, 62 years old, with back pain after lumbar puncture radiating to the right lower extremity. Alignment is anatomic. Vertebral body morphology is within normal limits. Marrow signal characteristics are normal with no evidence of marrow infiltration or marrow edema.The visualized spinal cord, conus and cauda equina demonstrate normal signal intensity and mor phology. No pathologic epidural fluid or tissue is seen.L1-2: Left paracentral disk protrusion without significant spinal canal stenosis or obvious nerve root impingement. The neural foramina are patent. L2-3: Minimal right paracentral disk protrusion without significant canal stenosis or nerve root impingement. The neural foramina are patent. L3-4: Mild facet hypertrophy and ligamentum flavum thickening. Minimal left foraminal protrusion. No significant spinal canal or neuroforaminal narrowing. L4-5: Mild facet hypertrophy and ligamentum flavum thickening. Minimal left foraminal protrusion/annular fissure. No significant spinal canal or neuroforaminal narrowing. L5-S1: Mild facet hypertrophy. No significant spinal canal or neuroforaminal narrowing. Perineural root sleeve cysts are seen scattered through the sacral foramina.
1. Left paracentral disk protrusion at L1-2 without significant spinal canal or neuroforaminal stenosis and no evidence of nerve root impingement.2. Very mild degenerative findings at other levels as discussed above.3. No complications of lumbar puncture are seen including no evidence of any epidural blood or other fluid collections.