Patient characteristics (mean ± SD of numeric variables)
| Total number | 21 |
| Age (years) | 59.4 ± 7.4 |
| Male/Female | 13/8 |
| MMSE | 20.9 ± 6.7 |
| Clinical Neurological Scale | 12.1 ± 5.8 |
| Duration of illness (months) | 2.8 ± 2.0 |
| Survival after MRI (months) | 4.3 ± 4.7 |
| Symptoms (%) | |
| Brain stem dysfunction | 57% |
| Frontal release signs | 86 |
| Cerebellar signs | 90 |
| Extrapyramidal signs | 86 |
| Pyramidal signs | 76 |
| Cognitive impairment (MMSE<24) | 60 |