Infarcts of the cerebellum are uncommon and present with a range of clinical findings.
Signs and symptoms include:
(1) vertigo
(2) headache
(3) disturbance of consciousness
(4) dysarthria
(5) nystagmus
(6) ataxia with unsteady gait
(7) nausea and vomiting
(8) dysmetria
(9) variable Horner syndrome
(10) variable unilateral hearing loss and facial paralysis
(11) variable intolerance of head motion
The artery affected will impact findings:
(1) superior cerebellar artery: ataxia, dysarthria, nystagmus, nausea and vomiting, headache, vertigo
(2) anterior inferior cerebellar artery: ataxia, nausea and vomiting, vertigo, intolerance of head motion, ipsilateral hearing loss, ipsilateral facial paralysis, contralateral pain and temperature sensory loss, Horner syndrome
(3) posteroinferior cerebella artery: headache
Complications:
(1) hydrocephalus
(2) brainstem compression
