Main clinical features of the patients
| Main clinical features | No of patients |
|---|---|
| Vertigo | 8 |
| Nausea, vomiting | 8 |
| Headaches | 8 |
| Dysarthria | 9 |
| Hearing loss, tinnitus | 6 |
| Decreased alertness | 1 |
| Diplopia | 5 |
| Gait ataxia | 10 |
| Limb ataxia | 12 |
| Nystagmus | 6 |
| Motor weakness (f±u±l) unilateral or bilateral | 14 |
f =face; u=upper limb; l=lower limb.