title: Acute cerebellitis associated with rotavirus infection.
abstract: BACKGROUND
  Rotavirus infection is occasionally associated with central nervous system involvement, including cerebellitis. However, the precise clinical sequelae of central nervous system disorders and the usefulness of neuroradiological examination for clinical therapies, such as steroid pulse therapy, have not been clarified.
  
  
  METHODS
  We present a case of rotavirus cerebellitis examined by magnetic resonance imaging (MRI), magnetic resonance spectroscopy, and single photon emission computed tomography.
  
  
  RESULTS
  MRI demonstrated abnormal intensities in the right cerebellum on fluid attenuated inversion recovery images and, much more obviously, on diffusion-weighted images, but not on T1- or T2-weighted images. Single photon emission computed tomography showed only mild hypoperfusion in the right cerebellum on the 15th day, while 4 weeks later the image showed remarkably low perfusion in the right cerebellum.
  
  
  CONCLUSIONS
  The findings of the reported case suggest the importance of performing radiological examinations at early phases of the disease, especially by new modalities such as diffusion weighted imaging, to make timely and appropriate therapeutic decisions.
authors.affiliation: Department of Pediatrics, Graduate School of Medicine, Gifu University, 1-1 Yanagido, 501-1194 Gifu, Japan. zen-k@gifu-u.ac.jp
authors.forename: Zenichiro
authors.initials: Z
authors.lastname: Kato
authors.forename: Hideo
authors.initials: H
authors.lastname: Sasai
authors.forename: Michinori
authors.initials: M
authors.lastname: Funato
authors.forename: Takahiko
authors.initials: T
authors.lastname: Asano
authors.forename: Naomi
authors.initials: N
authors.lastname: Kondo
mesh_terms: D000208:Acute Disease; D002526:Cerebellar Diseases / Q000175:diagnosis / Q000821:virology*; D002675:Child, Preschool; D004660:Encephalitis / Q000175:diagnosis / Q000821:virology*; D005260:Female; D006801:Humans; D012400:Rotavirus Infections / Q000175:diagnosis