Acute Painful Neuropathy Induced by Rapid Correction of Serum Glucose Levels in a Diabetic Patient

Treatment-induced neuropathy in diabetes (also referred to as insulin neuritis) is considered a rare iatrogenic small fiber neuropathy caused by an abrupt improvement in glycemic control in the setting of chronic hyperglycemia. The prevalence and risk factors are unknown. It presents with neuropathic pain, symptoms of autonomic dysfunction, or a combination of both. We present a case that illustrates the range of presentations of the acute treatment-induced small fiber neuropathy in a patient with diabetes mellitus.