结论：螺旋高分辨率CT尤其是3d重建有利于周围型肺癌胸膜凹陷征的显示。
Conclusion: HHRCT, especially 3d reconstruction with surface shielding display, is helpful to show the pleural indentation in peripheral lung cancer.
结果周围型肺癌主要表现为肿块分叶、边缘毛刺、胸膜凹陷及空泡征；
Results Peripheral lung carcinoma mainly showed a mass with lobulated shape, spicules of margin, pleural indentation and vacuole sign.
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