例1男性，55岁。1996年2月12日因左上肺低分化腺癌而行左上肺叶切除，下叶背段部分切除及下叶肺裂处肺胸膜修补。关胸前未见明显漏气。术后病人因疼痛无咳嗽排痰。术后第3d术侧可闻痰鸣音，胸液达400ml。胸片示左肺不张，遂以纤支镜吸出大量泡沫样痰液。此后每日胸液仅约100mL? Example 1 Male, 55 years old. On February 12, 1996, due to poorly differentiated adenocarcinoma of the left upper lung, left upper lobe resection, partial resection of the lower lobe, and pulmonary pleura repair at the lower lobe fissure were performed. No significant air leakage was observed before closing the chest. Postoperative patients had no cough and sputum due to pain. On the 3rd day after operation, the phlegm can be heard and the pleural fluid reaches 400ml. The chest radiograph showed left lung atelectasis, and a large amount of foam-like sputum was sucked by a bronchoscope. Since then only about 100mL of broth daily?