隐匿性肺癌是指在支气管和肺内分泌物中找到癌细胞,但临床不能确定肺癌原发部位者。本文报告误诊4例隐匿性肺癌,分析如下。临床资料　4例隐匿性肺癌均因咳嗽、痰中带血就诊,痰中带血时间1周～9个月,均无明显阳性体征,胸部Ｘ线片及ＣＴ检查无明显异常,误诊为慢性支气管炎、... Occult lung cancer refers to the finding of cancer cells in the bronchial and lung secretions, but clinically it cannot determine the primary site of lung cancer. This report misdiagnosed 4 cases of occult lung cancer. The analysis is as follows. Clinical data 4 cases of occult lung cancer were due to cough, sputum blood treatment, sputum blood time 1 week to 9 months, no significant positive signs, chest X-ray and CT examination no obvious abnormalities, misdiagnosed as chronic bronchial inflammation,...