Rare Zebra

Rare disease search prototype built on Orphanet data

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ORPHA:99803

Haddad syndrome

Also called Congenital central alveolar hypoventilation-Hirschsprung disease syndrome, Ondine-Hirschsprung disease, Ondine-Hirschsprung syndrome

Body system
Neurological diseases
Inheritance pattern
Autosomal dominant, Multigenic/multifactorial
Typical age of onset
Infancy, Neonatal
Estimated prevalence
<1 / 1 000 000 (Worldwide)
Rarity class
<1 / 1 000 000

ORPHA:99803 is classified under "Neurological diseases" in the Orphanet nomenclature.

Common signs

  • Strabismus
  • Failure to thrive
  • Small for gestational age
  • Aganglionic megacolon
  • Breathing dysregulation
  • Central hypoventilation