Rare Zebra

Rare disease search prototype built on Orphanet data

← Back to search

ORPHA:365

Glycogen storage disease due to acid maltase deficiency

Also called Alpha-1,4-glucosidase acid deficiency, GSD due to acid maltase deficiency, GSD type 2, GSD type II, Glycogen storage disease type 2, Glycogen storage disease type II, Glycogenosis due to acid maltase deficiency, Glycogenosis type 2, Glycogenosis type II, Pompe disease

Body system
Inborn errors of metabolism
Inheritance pattern
Autosomal recessive
Typical age of onset
Adolescent, Adult, Antenatal, Childhood, Infancy, Neonatal
Estimated prevalence
1-9 / 1 000 000 (Europe)
Rarity class
1-9 / 1 000 000

ORPHA:365 is classified under "Inborn errors of metabolism" in the Orphanet nomenclature.

Common signs

  • Muscle weakness
  • Progressive proximal muscle weakness
  • Oligosacchariduria
  • Decreased circulating acid maltase activity
  • Gait disturbance
  • Feeding difficulties in infancy