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本文对197例肺不张病例经纤支镜检查明确其病因特征及易发部位等进行了分析报道。癌性肺不张居首位，占72．1％；其中鳞癌占54．9％，未分化癌占21．1％，腺癌占0．7％。纤支镜下特征：鳞癌、未分化癌多呈结节状，菜花状，息肉样；腺癌多呈粘膜增厚，纵行条索状改变；炎性肺不张占12．7％，镜下特征为粘膜充血，水肿，有分泌物附着，并可见分泌物自远端支气管溢出。纤支镜检查明确肺不张原因阳性率达92．2％。作者认为肺不张是纤支镜检查的绝对适应者。
In this paper, 197 cases of atelectasis underwent bronchoscopy to determine its etiological characteristics and the location of prone to occur. Cancer atelectasis ranked first, accounting for 72.1%; squamous cell carcinoma accounted for 54.9%, undifferentiated carcinoma accounted for 21.1%, and adenocarcinoma accounted for 0.7%. Bronchoscopic features: squamous cell carcinoma, undifferentiated carcinoma, mostly nodular, cauliflower-like, polypoid; adenocarcinoma mostly mucous membrane thickening, longitudinal cord-like changes; inflammatory atelectasis accounted for 12.7%, Microscopic features include mucous membrane congestion, edema, and adhesion of secretions, and visible secretions overflow from the distal bronchi. Fiberoptic bronchoscopy confirmed a positive rate of 92.2% for atelectasis. The authors believe that atelectasis is an absolute adaptation to bronchoscopy.