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Charcot-Marie-Tooth disease type 2B5

Disease definition

A rare axonal hereditary motor and sensory neuropathy characterized by infantile onset of slowly progressive distal motor weakness and atrophy (more severe in legs and moderate in arms) with mildly delayed motor development, hypotonia, and distal sensory impairment of all sensory modalities.


Classification level: Disorder
  • Synonym(s):
    • AR-CMT2B5
    • Autosomal recessive Charcot-Marie-Tooth disease type 2B5
    • SEOAN due to NEFL deficiency
    • Severe early-onset axonal neuropathy due to NEFL deficiency
    • Severe early-onset axonal neuropathy due to light neurofilament subunit deficiency
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Childhood, Infancy
  • ICD-10: G60.0
  • OMIM: 607734
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information

Article for general public


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