Rare Zebra

Rare disease search prototype built on Orphanet data

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ORPHA:35878

Hyperinsulinism-hyperammonemia syndrome

Also called HI/HA syndrome

Body system
Inborn errors of metabolism
Inheritance pattern
Autosomal dominant
Typical age of onset
Infancy, Neonatal
Estimated prevalence
Unknown (Europe)
Rarity class
Unknown

ORPHA:35878 is classified under "Inborn errors of metabolism" in the Orphanet nomenclature.

Common signs

  • Asymptomatic hyperammonemia
  • Reactive hypoglycemia
  • Hyperinsulinemic hypoglycemia
  • Global developmental delay
  • Specific learning disability
  • Generalized non-motor (absence) seizure