title: Imaging findings in pyogenic ventriculitis.
abstract: BACKGROUND
  Pyogenic ventriculitis is an uncommon but often severe intracranial infection.
  
  
  METHODS
  Case report with illustrative CT and MRI imaging.
  
  
  RESULTS
  A 49-year-old man presented with an intraparenchymal hematoma with extension of blood into the ventricles. The persistence of intraventricular blood necessitated long term placement of an external ventricular drain. On day 23 after admission, a contrast-enhanced CT scan of the brain showed slight hydrocephalus, irregular debris in the dependent part of the occipital horns and periventricular hypodensities. An MRI scan confirmed the characteristic hallmarks of pyogenic ventriculitis on the T2-weighted, Fluid Attenuated Inversion Recovery (FLAIR), and diffusion-weighted and contrast-enhanced T1-weighted images.
  
  
  CONCLUSIONS
  Neuroimaging is crucial in clearly depicting pyogenic ventriculitis. A contrast-enhanced CT scan, but especially MR imaging, is an ideal tool to reliably diagnose this life-threatening cerebral infection.
authors.affiliation: Department of (neurological) Critical Care Medicine, Antwerp University Hospital, University of Antwerp, Wilrijkstraat 10, B-2650 Edegem, Belgium. Philippe.Jorens@uza.be
authors.forename: Philippe G
authors.initials: PG
authors.lastname: Jorens
authors.forename: Maurits H
authors.initials: MH
authors.lastname: Voormolen
authors.forename: Dominique
authors.initials: D
authors.lastname: Robert
authors.forename: Paul M
authors.initials: PM
authors.lastname: Parizel
mesh_terms: D058565:Cerebral Ventriculitis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging; D004322:Drainage / Q000009:adverse effects; D006406:Hematoma / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed
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