An Important Form of Diabetes for Clinicians: Ketosis-Prone Diabetes

Ketosis-prone diabetes (KPD) is defined as a hybrid form of diabetes mellitus, which is predominantly seen in overweight-to-obese men. Although the diagnosis is based on diabetic ketoacidosis (DKA) as a presenting feature, which also is characteristic of type 1 diabetes, the course of the disease differs from type 1. Recognition of this form by the clinicians is important as these patients are negative for autoantibodies and share the characteristics of type 2 diabetes during follow-up. Here we report 2 cases of KPD presenting with DKA and maintaining normoglycemia without insulin after receiving short-term intensive insulin treatment.