Noninsulinoma Pancreatogenous Hypoglycemia: A Novel Syndrome of Hyperinsulinemic Hypoglycemia in Adults Independent of Mutations in Kir6.2 and SUR1 Genes¹

In adults, endogenous hyperinsulinemic hypoglycemia is almost invariably due to insulinoma. In these patients with insulinoma, neuroglycopenic episodes exclusively after meal ingestion and negative 72-h fasts are extraordinarily rare. We describe five adults with neuroglycopenic episodes from hyperinsulinemic hypoglycemia within 4 h of meal ingestion and negative 72-h fasts. Each had negative transabdominal ultrasonography, spiral computed...