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Familial encephalopathy with neuroserpin inclusion bodies

Disease definition

A rare serpinopathy characterized by progressive myoclonus epilepsy and/or pre-senile dementia with prominent frontal-lobe features and relative sparing of recall memory. In addition, other neurological manifestations like cerebellar symptoms and pyramidal signs may be present. Age of onset is variable, the disease having been reported in children as well as elderly patients. Neuropathological examination reveals the typical neuronal inclusions of mutated neuroserpin (Collins bodies).

ORPHA:85110

Classification level: Disorder
  • Synonym(s):
    • FENIB
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal dominant 
  • Age of onset: Adult, Adolescent, Childhood
  • ICD-10: G31.8
  • OMIM: 604218
  • UMLS: C1858680
  • MeSH: C536841
  • GARD: 10037
  • MedDRA: -

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