【病例】　女 ,49岁。反复咳嗽、咳痰、咯血 4年余 ,偶有发热 ,无夜间盗汗及进行性消瘦。 1998年 10月 9日第 1次入院治疗 ,查红细胞沉降率 41mm/ h,3次痰找抗酸杆菌阴性 ,心电图正常。X线胸片见左肺下野后外基底段密度欠均匀之致密影 ,与同年 7年 2 1日 X线胸片比较左下肺病灶 [Case] ​​Female, 49 years old. Repeated cough, sputum, hemoptysis more than 4 years, occasional fever, no night sweats and progressive weight loss. October 9, 1998 the first admission to hospital, check the sedimentation rate of erythrocytes 41mm / h, sputum looking for the third sputum negative, normal ECG. X-ray chest to see the next lower ground after the basal segment outside the dense density of the dense shadow, with the same year 7 21 years X-ray comparison of the lower left lung lesions