glycogen storage disease, type Ib, a form of glycogen storage disease in which excessive amounts of glycogen are deposited in the liver and leukocytes. Some symptoms are similar to, but less severe than, those of glycogen storage disease, type Ia (von Gierke’s disease). Additional symptoms include neutropenia and recurrent GI inflammatory disease. Biopsy of the affected organs reveals the absence of glucose-6-phosphatase translocase, an enzyme necessary for glycogen metabolism.
