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