Glycogen storage disease type III
What are the different forms of glycogen storage disease type 3?
There are two different forms of glycogen storage disease type III (GSD III), based on differences in their symptoms. Both of the types of GSD III are caused by the same gene changes
- GSD IIIa: This form of GSD III affects both the liver and muscles, including the heart. This is the most common form of GSDIII and occurs in 85% of people with GSD III.
- GSD IIIb: This form of GSD III affects only the liver. About 15% of people with GSDIII have this type.