Pompe disease (OMIM 232300), also known as Glycogen Storage Disease Type II, is an autosomal recessive disorder caused by deficiency of the lysosomal enzyme acid alpha-1,4-glucosidase (GAA), leading to toxic accumulation of glycogen in cardiac, skeletal, and smooth muscle (Hers, 1963). Here, GAA is linked to Glycogen storage disease due to acid maltase deficiency.