We present a 40 year male patient who developed diabetic ketoacidosis with acute renal failure and high serum values of CPK and uric acid. Because of acute onset of ketoacidosis during several days with an elevation of serum amylase, negative findings of antibodies associated with autoimmune type 1 diabetes mellitus, he was diagnosed of a non-autoimmune, fuluminant, type 1 diabetes mellitus, which is a newly established subtype of type 1 diabetes mellitus. Since the patient\u27s post-prandial plasma glucose was extremely high (1123 mg/dl) when he developed ketoacidosis, the severe dehydration due to extreme hyperglycemia might have caused acute renal failtire and rhabdomyolysis
