在胸部影像诊断过程中 ,尤其是某些较隐蔽部位的病变 ,一种检查往往由于缺乏更多影像信息 ,而造成诊断上的疏漏或不足。当一种影像不能诊断 ,必然会选择进一步检查以增加信息利于诊断。笔者回顾 2 1例不同医院对胸腔上口肺尖区隐蔽性病变 CT检查并行 X线胸片对比分析 ,初步体会 In the chest imaging diagnosis, especially in some hidden parts of the lesion, an examination often due to the lack of more information on the image, resulting in diagnostic omissions or deficiencies. When an image can not be diagnosed, it will inevitably choose to further check to increase the information for diagnosis. The author reviewed 21 cases of different hospitals on the pleural cavity of the apex of the hidden lesions CT examination of the chest X-ray contrast analysis of the preliminary experience