Clinical characteristics of “Not MS” patients according to McDonald classification
| Patient | Age at onset (years) | First episode | Second episode | Course | Investigation results | Poser criteria |
|---|---|---|---|---|---|---|
| CSF, cerebrospinal fluid; MRI, magnetic resonance imaging; pos CSF, multiple oligoclonal bands present in CSF but not in serum; PP, primary progressive; RR, relapsing remitting; SSEP, somatosensory evoked potentials; VEP, visual evoked potentials. | ||||||
| 1 | 46 | Spinal cord syndrome (onset 1996) | – | PP | 2001: delayed VEP; CSF normal; MRI (head+spinal cord) normal | CPMS |
| 2 | 61 | Leg weakness (onset 2000) | – | PP | 2000: delayed SSEP; CSF normal; MRI: a few lesions in brain +1 lesion in spinal cord | CPMS |
| 3 | 23 | Myelitis (onset 1998) | Myelitis (2001) | RR | 2001: delayed SSEP; pos CSF; MRI (head+spinal cord) normal | LSDMS |
| 4 | 41 | Difficulty in walking, fatigue (1996) | Multiple symptoms, fatigue, walking difficulties | RR | 1996: pos CSF; MRI (head+spinal cord) normal | LPMS |