胰岛素瘤的诊断和治疗：附120 例报告

目的:探讨胰岛素瘤的诊断与治疗方法。方法:回顾性分析40 年间收治的120 例胰岛素瘤患者的临床资料。结果:全组患者均有Whipple三联症的临床表现，血糖均<2.75mmol/L；75 例空腹血清胰岛素>25μU/mL，平均(65 ±6.0)μU/mL。术前B 超检查60 例，2 例发现肿瘤；CT 检查50 例，10 例发现肿瘤；术中B 超检查18 例，16 例与术中探查相符，1 例发现了未能扪及的肿瘤。良性肿瘤112例，恶性肿瘤4例，胰岛细胞增生症4例。行单纯肿瘤摘除70 例，行包括肿瘤在内的胰体尾脾切除44 例，单纯胰体尾切除4 例，活检2 例。112 例良性胰岛素瘤术后111 例低血糖症状立即消失，1 例术后仍有低血糖症状发作，通过再次手术时发现钩突部肿瘤，切除后治愈。继发胰瘘20 例，均为肿瘤摘除者，其中14 例经引流自愈，5例经手术治疗痊愈，1 例因腹腔感染死亡。结论:胰岛素瘤术前定位不易，术中探查及术中B 超是发现肿瘤的主要手段；对良性者应力争行肿瘤摘除术，对肿瘤位于胰体尾较大且深或多发肿瘤者应行胰体尾切除术。

Diagnosis and treatment of insulinoma: a report of 120 cases

Abstract:Objective:To study the methods for diagnosis and treatment of insulinoma.Methods :The clinical data of 120 patients with insulinoma who had been admitted to our hospital in the last 40 years were retrospectively reviewed.Results:Fasting blood glucose values were less than 2.75 mmol/L in all the patients.Fasting serum insulin values in 75 patients were higher than 25 μU/mL,and the average was (65 ±6.0)μU/mL.Before operation,tumor was detected in 2 of 60 patients by ultrasound scan,and in 10 of 50 by CT. Among 18 patients who had intra operative B ultrasound examination, 16 positive cases were verified by intraoperative exploration; and one case the tumor was not palpable but was found by intraoperative B ultrasound examination.The operations included enucleation of insulinoma(70 patients),insulinoma resection and distal resection of the pancreas(44),distal resection of the pancreas(4),and biopsy(2).The low blood glucose symptoms disappeared after the first operation in 111 of the 112 patients who had benign tumor.One case with benign tumor was cured by a second operation.Twenty patients developed pancreatic fistula after tumor enacleation, of them,14 healed uneventfully after drainage,5 were cured by operation,and 1 died of peritoneal infection.Conclusions:Preoperative localization of insulinomas is difficult. Intraoperative exploration and ultrasound scan are the chief methods for the localization of insulinoma.Enucleation of insulinoma should be selected for benign tumor. Resections of the pancreatic body and tail is required for large,deep or multiple tumors.