Orphanet: Yunis Varon syndrome
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Yunis-Varon syndrome

Disease definition

A rare, genetic, multiple congenital malformation syndrome, characterized by cleidocranial dysplasia (wide fontanelles, calvaria dysostosis, absent or hypoplastic clavicles), absent thumbs and halluces, hypoplastic distal and medial phalanges of fingers, pelvic dysplasia with hip dislocations. Dysmorphic features include sparse scalp hair, protruding eyes, low-set ears, anteverted nares, midfacial hypoplasia, tented upper lip, high arched palate, and micrognathia. Brain malformations are frequently associated. From birth, affected individuals tend to be significantly hypotonic and present with global developmental delay, and respiratory, feeding and swallowing difficulties.

ORPHA:3472

Classification level: Disorder
  • Synonym(s):
    • Cleidocranial dysplasia-micrognathia-absent thumbs syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Neonatal
  • ICD-10: Q87.8
  • OMIM: 216340
  • UMLS: C1857663
  • MeSH: C536719
  • GARD: 331
  • MedDRA: -
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