J Korean Neurol Assoc.  2020 Feb;38(1):46-49. 10.17340/jkna.2020.1.9.

Anti-LGI1 Antibody Encephalitis Mimicking Jumping Stump Syndrome

Affiliations
  • 1Department of Neurology, CHA University CHA Bundang Medical Center, Seongnam, Korea

Abstract

Jumping stump syndrome is considered to be a peripherally induced movement disorder due to damage to peripheral nerves leading to dystonia or myoclonus. Anti-leucine-rich glioma-inactivated 1 antibody (anti-LGI 1 Ab) encephalitis is clinically characterized with progressive cognitive dysfunction and seizure including facial brachial dystonic seizure. We report a case of a woman with a history of intractable involuntary movement on amputated forearm diagnosed as anti-LGI 1 Ab encephalitis, mimicking symptoms of jumping stump syndrome.

Keyword

Anti-LGI 1 encephalitis; Facial brachial dystonic seizure; Jumping stump syndrome
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