Cerebellar infarction location PICA 34, 29%, SCA 22, 86%, multiple vascular territories 20%, AICA 11.43%. Conclusion: although most symptoms in clinical features are unspecific (vertigo, vomiting, headache), vascular risk patients having neurologic symptoms (nystagmus, dysarthria, ataxia...) should have diagnosed images (CT, MRI) to diagnose early CI, to make surgical intervention timely, avoid brainstem and ventricle compression, reduce mortality.