Abnormal fat distribution in PMM2-CDG.

We hypothesize that abnormal fat distribution, a common feature of PMM2-CDG, is associated with abnormal perinatal hormone regulation. We assessed 32 cases with PMM2-CDG, for the comorbidity of hypoglycemia/hyperinsulinism and fat pads. Ninety percent of patients with hypoketotic hypoglycemia and/or hyperinsulinism had abnormal fat distribution, while normoglycemic patients showed this feature in 50% of the cases. This statistically significant difference suggests an etiological role of the insulin receptor in developing abnormal fat distribution in PMM2-CDG.