Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.


Genetic and Rare Diseases Information Center (GARD)

Print friendly version

Glycogen storage disease type 3

Other Names for this Disease
  • Amylo-1,6-glucosidase deficiency
  • Cori disease
  • Forbes disease
  • Glycogen debrancher deficiency
  • Limit dextrinosis
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.


Glycogen storage disease type 3 (GSDIII) is an inherited disorder caused by the buildup of glycogen in the body's cells. This buildup impairs the function of certain organs and tissues, especially the liver and muscles. Symptoms typically begin in infancy and may include hypoglycemia, hyperlipidemia (excess of fats in the blood), and elevated blood levels of liver enzymes; later symptoms may include hepatomegaly, chronic liver disease (cirrhosis) and liver failure later in life. Some individuals have short stature and noncancerous (benign) tumors called adenomas in the liver. GSDIII is cause by mutations in the AGL gene and is inherited in an autosomal recessive manner.[1] Treatment typically includes a high-protein diet with cornstarch supplementation to maintain a normal level of glucose in the blood.[2] GSDIII is divided into types IIIa, IIIb, IIIc, and IIId; types IIIa and IIIc mainly affect the liver and muscles, and GSD types IIIb and IIId typically affect only the liver.[1]
Last updated: 2/13/2012


  1. Glycogen storage disease type III. Genetics Home Reference. September 2010; Accessed 3/1/2011.
  2. Aditi Dagli, Christiaan P Sentner, David A Weinstein. Glycogen storage disease type III. GeneReviews. October 21, 2010; Accessed 3/2/2011.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

2 question(s) from the public on Glycogen storage disease type 3 have been answered. See questions and answers. You can also submit a new question.

Basic Information

  • Genetics Home Reference (GHR) contains information on Glycogen storage disease type 3. This website is maintained by the National Library of Medicine.
  • The National Organization for Rare Disorders (NORD) is a federation of more than 130 nonprofit voluntary health organizations serving people with rare disorders. Click on the link to view information on this topic.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Glycogen storage disease type 3. Click on the link to view a sample search on this topic.