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Syndrome reference sheet
Generated 13 Oct 2026
Neurology · Neurology / Neuroimmunology

Morvan syndrome

Also known as: Morvan's fibrillary chorea

Autoimmune peripheral nerve hyperexcitability with encephalopathy.

Medical specialty
Neurology
Subspecialty
Neurology / Neuroimmunology
Sex & age distribution
Male: more common (about 90% male); Female: affected; Children: no
Gene(s) involved
None recorded

Etiology & mechanism

CASPR2 antibodies, thymoma.

Gene(s) involved (0)

No gene recorded.

Symptoms & signs (5)

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