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Syndrome reference sheet
Generated 13 Oct 2026
Neurology · Neurology / Epilepsy; Neuroimmunology Rasmussen encephalitis
Also known as: chronic focal encephalitis; Rasmussen syndrome
Rare progressive unilateral cerebral hemisphere inflammation with refractory focal seizures.
- Medical specialty
- Neurology
- Subspecialty
- Neurology / Epilepsy; Neuroimmunology
- Sex & age distribution
- Male: affected; Female: affected equally; Children: yes, onset typically 6 years (range 1–14); adult cases rare
- Gene(s) involved
- None recorded
Etiology & mechanism
Cytotoxic T-cell mediated inflammation of one hemisphere; cause unknown.
Gene(s) involved (0)
No gene recorded.
Symptoms & signs (5)
cognitive declineepilepsia partialis continuafocal seizureshemispheric atrophy (mri)progressive hemiparesis