胸部肿瘤的X线影像诊断中，CT是较常使用的影像诊断方法。由于密度分辨率高和可获得胸部横断面影像，CT能发现平片不能发现或不能明确的胸部诊断问题，这方面报道很多，但CT对胸部肿瘤的诊断中也存在一些值得注意的问题，误诊分析报道不多［‘］。为了较全面的认识CT的作用，笔 In the diagnosis of thoracic tumor X-ray images, CT is a commonly used imaging diagnosis method. Because of the high density resolution and the availability of chest cross-sectional images, CT can find chest patches that cannot be found or cannot be clearly diagnosed by plain films. There are many reports in this regard, but CT also has some problems worth noting in the diagnosis of chest tumors. There are not many reports [’]. In order to fully understand the role of CT, the pen