1病例摘要患者,男,65岁,退休工人。两个月前无诱因出现刺激性咳嗽,加重一周,来我院就诊。两个月前患者出现轻微的咳嗽,患者未重视,近一周咳嗽症状加重,无发热,咳少量白色黏液痰,无咯血及胸痛的症状,同时伴有胸闷,气短,实验室检查未见异常。胸部CT扫描:左主支气管开口处见2.2×1.0×0.8 cm左右的结节影, 1 case summary patient, male, 65 years old, retired worker. Two months ago there is no incentive to appear irritating cough, aggravating a week, to our hospital. The patient had mild cough two months ago. The patient did not pay much attention to the cough symptoms in the past week. There was no fever, cough with a small amount of white mucus sputum, no hemoptysis and chest pain. Chest tightness and shortness of breath were accompanied by no abnormalities in laboratory tests. Chest CT scan: see the left main bronchial orifice at about 2.2 × 1.0 × 0.8 cm nodules,