CSF characteristics before and after intravenous methylprednisolone boluses (1g/day for 5 days)
| CSF characteristics | Before corticosteroid treatment (day 23 of hospitalisation) | 1 week after corticosteroid treatment (day 35 of hospitalisation) |
| Appearance | Clear | Clear |
| Leucocytes/mm3 | 120 | 46 |
| Monocytes (%) | 98 | 91 |
| Polymorphonuclears (%) | 2 | 9 |
| Red blood cells/mm3 | 3 | 2400* |
| Glucose (mg/dL) | 51 | 55 |
| Proteins (g/L) | 1.25 | 0.53 |
| ADA (U/L) | 13.7 | 9.5 |
| Oligoclonal bands | 8 IgG bands | Not determined |
*Traumatic puncture.
CSF, cerebrospinal fluid.