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Published on: June 8, 2017
[MRI findings in Rasmussen's encephalitis].
Carolina Mendes Dos Santos1, Teresa Moreno, Graça Sá
1Unidade de Neurologia Pediátrica, Serviço de Pediatria, Centro Hospitalar Lisboa Norte, Lisboa, Portugal.
Acta Medica Portuguesa
|November 27, 2012
Summary
Rasmussen's encephalitis, a rare inflammatory brain condition, is diagnosed using clinical, EEG, and MRI findings. This case highlights characteristic MRI changes over time, crucial for diagnosis and monitoring.
Area of Science:
- Neurology
- Pediatric Neurology
- Neuroinflammation
Background:
- Rasmussen's encephalitis is a chronic, inflammatory brain disorder of unknown cause.
- Diagnosis relies on characteristic clinical, electroencephalographic (EEG), and neuroimaging findings.
- Serial Magnetic Resonance Imaging (MRI) reveals a distinct temporal progression of lesions.
Observation:
- A 7-year-old female presented with drug-resistant focal epilepsy originating from a left fronto-temporal epileptogenic focus.
- Video-EEG confirmed the epileptogenic zone.
- Serial brain MRI demonstrated evolving left fronto-temporal and insular lesions.
Findings:
- The observed MRI features and clinical presentation led to a diagnosis of exclusion: Rasmussen's encephalitis.
- The case illustrates the characteristic pattern of lesion evolution in this condition.
- MRI is pivotal in identifying and tracking the disease's progression.
Implications:
- This case underscores the critical role of serial MRI in diagnosing and managing Rasmussen's encephalitis.
- Understanding MRI patterns aids in early detection and appropriate patient care.
- Further research into the etiology of Rasmussen's encephalitis is warranted.
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