目的探讨肺组织不同活检术在肺部块影诊断中的应用价值。方法对１５７例临床上疑为肺肿瘤的住院病人，依据胸片上肺部块影部位及形态分为中央型、周围型和其它型。对经纤维支气管镜（简称纤支镜）直视下肺组织活检（简称肺活检）阴性者，分别选用Ｘ线引导下经皮肺活检和Ｃ... Objective To investigate the value of lung biopsy in the diagnosis of pulmonary shadow. Methods 157 hospitalized patients with clinically suspected lung tumors were divided into central, peripheral, and other types based on the location and shape of the lung mass on the chest radiograph. For patients who underwent biopsy (referred to as lung biopsy) under direct vision under fiberoptic bronchoscopy (referred to as fiberbronchoscope) under direct vision, were selected X-ray guided percutaneous lung biopsy and C...