Acute cerebellitis is a rare inflammatory syndrome frequently characterized by fast onset of cerebellar dysfunction. The present case report describes imaging findings in a child with acute cerebellitis, tonsillar herniation and hypertensive hydrocephalus. The etiologic agent has not been determined. A conservative management was adopted, with corticoid and diuretic drugs. Imaging follow-up demonstrated resolution of the clinical condition with no sequela.
Acute cerebellitis; Tonsillar herniation; Magnetic resonance imaging
