目的 :比较CT与纤维支气管镜检查 (纤支镜 )对阻塞性肺不张 (简称肺不张 )病因诊断的价值。方法 :86例肺不张患者同时进行纤支镜和肺部CT检查。结果 :86例肺不张病因为 :肿瘤 5 5例 ,占 6 4% ;炎症 17例 ,占 19.8% ;结核 8例 ,占 9.3% ;其他 6例 ,占 7%。CT检查病因明确 6 9例 ,占 80 .2 % ,纤支镜明确病因 84例 ,占 97.7%。结论 :纤支镜检查对肺不张的病因诊断有重要作用 ,纤支镜检查应作为原因不明肺不张常规检查方法之一。 Objective: To compare the value of CT and fiberoptic bronchoscopy (bronchoscopy) in the diagnosis of obstructive pulmonary atelectasis (referred to as atelectasis). Methods: A total of 86 patients with atelectasis underwent both bronchofibroscopy and pulmonary CT examination. Results: 86 cases of atelectasis were: 5 5 cases of tumors, accounting for 64%; 17 cases of inflammation, accounting for 19.8%; 8 cases of tuberculosis, accounting for 9.3%; the other 6 cases, accounting for 7%. The etiology of CT examination was clear in 69 cases, accounting for 80.2%. The definitive etiology of bronchofibroscopy was 84 (97.7%). Conclusion: Bronchofibroscopy plays an important role in the etiological diagnosis of atelectasis. Fiberoptic bronchoscopy should be used as one of the unexplained lung atelectasis methods.