Autoimmune Insulin syndrome (AIS), also named Hirata disease, is a rare condition characterized by hypoglycemic episodes due to the presence of high titers of insulin autoantibodies (IAA). AIS is a form of immune-mediated hypoglycemia, which develops when a triggering factor (medication or a viral infection) acts on an underlying predisposing genetic background. The diagnosis of IAS is challenging, requiring a careful workup aimed at excluding other causes of hyperinsulinemic hypoglucemia. The article presents a case of Hirata disease diagnosing of a patient of the therapy department of the Multidisciplinary Medical Center of the Bank of Russia.Purpose: Determining of the features of the diagnosis of Autoimmune Insulin syndrome (Hirata disease)Materials and methods: the article presents a clinical case of the diagnosis of Autoimmune insulin syndrome (Hirata disease), focuses on the diagnostic significance of laboratory tests. The article is intended for general practitioners, endocrinologists, gastroenterologists.
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