title: Cerebellitis presenting as acute hydrocephalus.
abstract: A 14-year-old boy presented acutely with occipital headache, nausea and vomiting. MRI showed obstructive hydrocephalus and marked bilateral cerebellar swelling with increased signal on T2-weighted imaging. Following treatment with oral corticosteroids, the clinical and radiological signs resolved. The clinical course and radiological appearances were consistent with cerebellitis associated with a significant mass effect and hydrocephalus.
authors.affiliation: Department of Child Health, St. George's Hospital, London, UK.
authors.forename: S E
authors.initials: SE
authors.lastname: Aylett
authors.forename: K S
authors.initials: KS
authors.lastname: O'Neill
authors.forename: C
authors.initials: C
authors.lastname: De Sousa
authors.forename: J
authors.initials: J
authors.lastname: Britton
mesh_terms: D000293:Adolescent; D002526:Cerebellar Diseases / Q000150:complications / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004660:Encephalitis / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D006849:Hydrocephalus / Q000150:complications / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed