病例报告

　　【摘要】患者发作性意识不清5年，多于空腹发作。入院后发作2次，血糖分别为0.92、1.04 mmol/L，胰岛素28.68、30.86 mU/L，补糖后缓解。CT示胰尾部一直径1.3 cm占位，诊断胰岛素瘤，肿瘤切除术后持续高血糖，诊断T2DM。

　　【关键词】胰岛素瘤;高血糖;糖尿病，2型

　　【Summary】A patient was admitted with a five years history of paroxysmal confusional state, which occurred usually during fasting. Two episodes, with plasma glucose 0.92, 1.04 mmol/L, serum insulin 28.68, 30.86 mU/L respectively, happened after admission, and were relieved after infusion of dextrose. Abdominal CT scan showed a 1.3 cm sized pancreatic tail mass. Pathologic diagnosis was insulinoma. T2DM manifested overtly after insulinoma resection.

　　【Key words】Insulinoma;Hyperglycemia;Diabetes mellitus，type 2