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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
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.