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Larsen-like syndrome, B3GAT3 type

Disease definition

Larsen-like syndrome, B3GAT3 type is a rare, genetic, primary bone dysplasia characterized by laxity, dislocations and contractures of the joints, short stature, foot deformities (e.g. clubfeet), broad tips of fingers and toes, short neck, dysmorphic facial features (hypertelorism, downslanting palpebral fissures, upturned nose with anteverted nares, high arched palate) and various cardiac malformations. Severe disease is associated with multiple fractures, osteopenia, arachnodactyly and blue sclerae. A broad spectrum of additional features, including scoliosis, radio-ulnar synostosis, mild developmental delay, and various eye disorders (glaucoma, amblyopia, hyperopia, astigmatism, ptosis), are also reported.


Classification level: Disorder
  • Synonym(s):
    • Multiple joint dislocations-short stature-craniofacial dysmorphism-congenital heart defects syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q74.8
  • OMIM: 245600
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Additional information

Further information on this disease

Specialised Social Services

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