Orphanet: X linked severe congenital neutropenia

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X-linked severe congenital neutropenia

Disease definition

X-linked severe congenital neutropenia is an immunodeficiency syndrome characterized by recurrent major bacterial infections, severe congenital neutropenia, and monocytopenia. It has been described in five males spanning three generations of one family. It is transmitted as an X-linked recessive trait and is caused by mutations in the WAS gene, encoding the WASP protein.


Classification level: Disorder
  • Synonym(s): -
  • Prevalence: <1 / 1 000 000
  • Inheritance: X-linked recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: D70
  • OMIM: 300299
  • UMLS: C1845987
  • MeSH: -
  • GARD: 3981
  • MedDRA: -

Detailed information

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