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The natural history of acute disseminated leukoencephalitis. A serial magnetic resonance imaging study
1Department of Pediatrics, Yokohama City University School of Medicine, Japan.
Abstract:
The natural history of acute disseminated (leuko)encephalitis (ADE) in a 3-year-old girl who did not receive steroid therapy is reported. Serial MR studies disclosed: 1) white matter lesions resolved spontaneously, though very slowly, 2) active disease persisted for around three months and coincided with the onset of new subcortical lesions. These subcortical lesions were associated with hyperactivity, suggesting a possible etiologic correlation.
Insights
This study tracked acute disseminated (leuko)encephalitis in a child without steroids. White matter lesions slowly resolved, while new subcortical lesions linked to hyperactivity appeared.
Area of Science:
- Neurology
- Pediatric Neurology
- Neuroimmunology
Background:
- Acute disseminated (leuko)encephalitis (ADE) is an immune-mediated demyelinating disease.
- Understanding the natural history of ADE is crucial for diagnosis and management.
- Steroid therapy is a common treatment, but its absence allows for observing the disease's unmitigated course.
Observation:
- Serial MRI scans were used to monitor disease progression in a 3-year-old girl with ADE.
- The study focused on a patient who did not receive steroid treatment.
- Clinical symptoms, including hyperactivity, were correlated with imaging findings.
Findings:
- White matter lesions showed slow, spontaneous resolution over time.
- Active disease, characterized by new subcortical lesions, persisted for approximately three months.
- A correlation between new subcortical lesions and hyperactivity was observed, suggesting a potential etiological link.
Implications:
- This case highlights the potential for spontaneous resolution of white matter lesions in ADE, albeit slowly.
- The association between subcortical lesions and hyperactivity warrants further investigation into the neurological and behavioral effects of ADE.
- Findings contribute to understanding the natural history of pediatric demyelinating disorders and may inform future treatment strategies.