作者通过对三例不同程度从事过石棉接触病人的支气管活检证实了他们有石棉肺的存在,并说明该技术可以提高诊断灵敏度。三例患者的胸片显示两肺均有网状或纤维状结节阴影。在不能确诊为石棉肺的情况下,都做了纤维光学支气管镜检和支气管活检。作者将取自每个病例的活检标本(最大者为2.5×1×1mm)用石蜡包埋后,进行6μ厚 The authors confirmed the presence of asbestosis in three patients with bronchial biopsies that had been exposed to asbestos to varying degrees and demonstrated that the technique could improve diagnostic sensitivity. The chest radiographs of three patients showed reticular or fibrous nodular shadows in both lungs. In the case can not be diagnosed as asbestosis, have done fiberoptic bronchoscopy and bronchial biopsy. The biopsies from each case (maximally 2.5 × 1 × 1 mm) were embedded in paraffin for 6 μ