胸部透视区分病变主要依靠胸部异常阴影形态的分析，但要结合阴影发生的部位、数目、形状、大小、边缘、密度、阻影之间的关系，阴影周围组织和脏器的变化及动态变化等。在病变的早期由于阴影很小，分析起来就比较困难，特别是肺内、胸膜、纵隔阻影更难鉴别，本文就根据多年的 Chest fluoroscopy differentiated lesions mainly rely on the analysis of abnormal chest shadow morphology, but with the shadow of the occurrence of parts, the number, shape, size, edge, density, blocking the relationship between the shadow of the surrounding tissue and organs changes and dynamic changes . In the early stage of the lesion due to the small shadow, it is more difficult to analyze, especially in the lung, pleura, mediastinal resistance shadow more difficult to identify, this article according to years