Rare Zebra

Rare disease search prototype built on Orphanet data

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ORPHA:13

6-pyruvoyl-tetrahydropterin synthase deficiency

Also called Hyperphenylalaninemia due to 6-pyruvoyltetrahydropterin synthase deficiency

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

ORPHA:13 is classified under "Inborn errors of metabolism" in the Orphanet nomenclature.

Common signs

  • Hypotonia
  • Opisthotonus
  • Hyperreflexia
  • Dysphagia
  • Rigidity
  • Bradykinesia