Neurological signs of compression of posterior fossa structures in basilar impression
| Horizontal nystagmus |
|---|
| Upbeat nystagmus |
| Downbeat nystagmus |
| Convergence nystagmus |
| Facial spasm |
| Nerve paresis |
| Pyramidal tract signs |
| Proprioceptive defect |
| Papilloedema in acute hydrocephalus |