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1·Objective To reinvestigate the value of overnight low-dose dexamethasone suppression test in the diagnosis of Cushing syndrome.

目的重新探讨过夜小剂量地塞米松抑制试验对库欣综合征的诊断价值。

2·Conclusion PPNAD is a rare type of Cushing syndrome. Diagnose depends on endocrine exams and pathological results. Operation is the effective method for the disease.

结论PPNAD是柯兴综合征的一种少见类型，诊断有赖于内分泌检查结果和病理学诊断，手术是治愈本病的有效方法。

3·Results All of the 32 cases presented with clinical and biochemical evidences of Cushing′s syndrome.

结果所有病例临床表现和生化测定均符合库欣综合征的诊断。

4·Methods 46 cases of Cushing s syndrome patients suffering from different causes were observed on age, gender, course of diseases and LABS inspection.

方法从年龄、性别、病程及实验室检查等方面，观察46例不同原因所致皮质醇增多症患者不同的临床表现和实验室检查。

5·Results The ectopic ACTH syndrome occurred in 11.3% of all patients with Cushing′s syndrome and the common causes were lung cancer and bronchial carcinoid.

结果（1）异位ACTH综合征占同期皮质醇增多症的11.3 % ，常见病因是肺癌和支气管类癌；