Conditions / Genetic

glycogen storage disease IXc

info · Genetic · ICD-10: E74.0

A glycogen storage disease IX characterized by autosomal recessive inheritance of hepatomegaly, hypotonia, growth retardation, and liver dysfunction with onset in childhood and improvement of symptoms with age that has_material_basis_in homozygous and compound

A glycogen storage disease IX characterized by autosomal recessive inheritance of hepatomegaly, hypotonia, growth retardation, and liver dysfunction with onset in childhood and improvement of symptoms with age that has_material_basis_in homozygous and compound heterozygous mutation in the PHKG2 gene on chromosome 16p11.

Signs and symptoms

  • Cirrhosis
  • Hepatomegaly
  • Growth delay
  • Increased hepatic glycogen content
  • Elevated circulating hepatic transaminase concentration
  • Hypotonia
  • Motor delay
  • Hypertriglyceridemia
  • Reduced hepatic phosphorylase kinase activity
  • Increased circulating lactate concentration

Also known as: GSD type 9C; GSD type IXc; GSD9C; glycogen storage disease type 9C; glycogen storage disease type IXc