Acute cerebellar ataxia, acute cerebellitis, and opsoclonus-myoclonus syndrome

摘要: Acute cerebellar ataxia and acute cerebellitis represent a process characterized by parainfectious, postinfectious, or postvaccination inflammation. There is considerable overlap between these entities. The mildest cases of benign condition that truncal gait ataxia, variably with appendicular nystagmus, dysarthria, hypotonia. It occurs mostly in young children, presents abruptly, recovers over weeks. Neuroimaging normal. Severe the other end spectrum, presenting signs often overshadowed alteration consciousness, focal neurological deficits, raised intracranial pressure, hydrocephalus, even herniation. abnormal prognosis less favorable than ataxia. disseminated encephalomyelitis may be confused when clinical findings are predominantly cerebellar, but lesions on neuroimaging usually widespread. Paraneoplastic opsoclonus-myoclonus syndrome initially misdiagnosed as has very specific features, course, etiopathogensis.