Orphanet: Rett syndrome
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Rett syndrome

Disease definition

A rare severe, X-linked, neurodevelopmental disorder characterized by rapid developmental regression in infancy, partial or complete loss of purposeful hand movements, loss of speech, gait abnormalities, and stereotypic hand movements, commonly associated with deceleration of head growth, severe intellectual disability, seizures, and breathing abnormalities. The disorder has a progressive clinical course and may associate various comorbidities including gastrointestinal diseases, scoliosis, and behavioral disorders.

ORPHA:778

Classification level: Disorder
  • Synonym(s): -
  • Prevalence: 1-9 / 100 000
  • Inheritance: X-linked dominant 
  • Age of onset: Infancy
  • ICD-10: F84.2
  • OMIM: 312750
  • UMLS: C0035372
  • MeSH: D015518
  • GARD: 5696
  • MedDRA: 10039000

Detailed information

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