Orphanet: Arthrogryposis multiplex congenita whistling face syndrome

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Arthrogryposis multiplex congenita-whistling face syndrome

Disease definition

An extremely rare type of arthrogryposis multiplex congenita characterized by the combination of multiple joint contractures with movement limitation, microstomia with a whistling appearance of the mouth that may cause feeding, swallowing, and speech difficulties, a distinctive expressionless facies, severe developmental delay, central and autonomous nervous system dysfunction (excessive salivation, temperature instability, myoclonic epileptic fits, bradycardia), occasionally Pierre-Robin sequence, and lethality generally occurring during the first months of life. Arthrogryposis multiplex congenita-whistling face syndrome has been suggested to be a fetal akinesia deformation sequence.


Classification level: Disorder
  • Synonym(s):
    • Illum syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Neonatal
  • ICD-10: Q87.8
  • ICD-11: LD26.41
  • OMIM: 208155
  • UMLS: C1859711
  • MeSH: C538401
  • GARD: 792
  • MedDRA: -

Detailed information

General public


ERN : produced/endorsed by ERN(s)
FSMR : produced/endorsed by FSMR(s)
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