患者男性，21岁。因咳嗽、发热、右脚钝痛40余天，外院CT诊断为“肺癌，右胸腔积液”，纤维支气管镜检病理报告“小细胞癌”入我院。X线胸片示右中叶不张，右侧胸腔积液。临床诊断：右肺癌，右胸腔积液性质待查。纤维支气管镜检查：右中叶支气管口被“息肉样”肿物完全堵塞。病 Male patient, 21 years old. Due to cough, fever, and dull pain in the right foot for more than 40 days, the CT diagnosis in the external hospital was “lung cancer and right pleural effusion”. The pathological report of “small cell carcinoma” was diagnosed in our hospital. X-ray showed right middle lobe edema, right pleural effusion. Clinical diagnosis: right lung cancer, right pleural effusion nature unknown. Fiberoptic bronchoscopy: The right middle lobe bronchus was completely blocked by a “polypoid” mass. disease