1979年4月～1997年6月，我院采用纤支镜检查确诊38例X线胸片阴性肺癌，现分析如下。临床资料一、一般资料：38例中男性32例，女性6例。年龄30～sl岁（平均572岁），50岁以上者32例。主要症状：咯血或痰中带血28例，咳嗽计例，胸痛4例，胸闷、气急7例，发热2例。所有病例在纤支 From April 1979 to June 1997, 38 cases of X-ray negative lung cancer were diagnosed by fibrobronchoscopy in our hospital. The analysis is as follows. Clinical data 1. General information: There were 32 males and 38 females in 38 cases. The age ranged from 30 to sl years (mean 572 years old), and 32 cases were over 50 years old. The main symptoms: hemoptysis or sputum with blood in 28 cases, cough count, chest pain in 4 cases, chest tightness, shortness of breath in 7 cases, fever in 2 cases. All cases in fiber