Table 4 (Continued)
| CSF, protein, 15–45 mg/dL | Nerve conduction studies | Nerve or muscle biopsy | SEP | Spine MRI | Brain MRI |
|---|---|---|---|---|---|
| 61 | Severe, SM, Ax | NA | AbN | DJD | Lacunes |
| N | Mild, S, Ax | NA | AbN | DJD | N |
| NA | Mild, SM, Ax | NA | NA | DJD | Lacunes |
| N | Mild, SM, Ax | NA | NA | DJD | Nonspecific T2 foci |
| N | Mild, SM, Ax | NA | AbN | Dorsal column | NA |
| 69 | Mild, SM, Ax | NA | AbN | Dorsal column | Nonspecific T2 focus |
| N | Severe, SM, Ax | Ax deg, vacuolar myopathy | NA | N | N |
| 76 | Severe, S(M), Ax, neuronopathy | Ax deg | NA | N | Atrophy |
| 75 | Moderate, SM, Ax | Ax deg, infiltrates | AbN | Dorsal column | Chiari 1 |
| N | Mild, M, Ax | NA | AbN | Small syrinx, T7–T9 | Nonspecific T2 |
| N | Severe, M(S), Ax | Ax deg | NA | N | Lacunes |
| N | Mild, M, Ax, myopathic | NA | AbN | DJD | Increased basal ganglia signal |
| N | Mild, M(S), Ax, myopathic | NA | AbN | DJD | Confluent periventricular T2 signal |