title: [MRI findings in Rasmussen's encephalitis].
abstract: BACKGROUND
  Rasmussen's encephalitis is a chronic inflammatory encephalitis of unknown etiology. Clinical, imaging and electroencephalographic characteristic findings allow its diagnosis. Serial brain MRI evaluation of these patients has a characteristic pattern of temporal evolution. Regarding a clinical case, the authors make a brief review of this pathology, with particular emphasis on the MRI findings.
  
  
  METHODS
  Female child, seven years old, who started a drug-resistant focal epilepsy at the age of four. The video-EEG revealed a left fronto-temporal epileptogenic focus. The serial MRI evaluation showed a left fronto-temporal and insular lesion with variation of its imaging features over time. After thorough investigation, the diagnosis of exclusion was that of Rasmussen's encephalitis.
  
  
  CONCLUSIONS
  MRI plays an important role in the diagnosis and monitoring of Rasmussen's encephalitis. Regarding a clinical case, we review this pathology, specially its MRI findings.
authors.affiliation: Unidade de Neurologia Pediátrica, Serviço de Pediatria, Centro Hospitalar Lisboa Norte, Lisboa, Portugal.
authors.forename: Carolina
authors.initials: C
authors.lastname: Mendes Dos Santos
authors.forename: Teresa
authors.initials: T
authors.lastname: Moreno
authors.forename: Graça
authors.initials: G
authors.lastname: Sá
authors.forename: David
authors.initials: D
authors.lastname: Rodrigues
authors.forename: Jorge G
authors.initials: JG
authors.lastname: Campos
mesh_terms: D002648:Child; D004660:Encephalitis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging