Orphanet: Joubert syndrome and related disorders

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Joubert syndrome and related disorders

Disease definition

Joubert syndrome (JS) and related disorders (JSRD) are a group of developmental delay/multiple congenital anomaly syndromes in which the mandatory feature is the ``molar tooth sign'' (MTS), a complex midbrain-hindbrain malformation recognizable on brain imaging. The MTS is characterized by cerebellar vermis hypodysplasia, thickening and malorientation of the superior cerebellar peduncles and abnormally deep interpeduncular fossa.


Classification level: Group of disorders
  • Synonym(s):
    • JSRD
  • Prevalence: Unknown
  • Inheritance: Autosomal recessive or X-linked recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: -
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information


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