There were no significant difference of the incidence of lobulated sign and pleuralindentationsign and the size of the mass between two groups(P>0.05).
而肿块大小、分叶征及胸膜凹陷征在两组之间的出现率无明显差异（ P＞ 0 ．05） 。
2
Results Typical nodules with deep lobulated sign, spiculated sign, vacuole sign, air bronchogram, pleuralindentation, and vessel convergence has great value in the diagnosis of malignant SPN.