Materials and Methods: The ct manifestation of vacuole sign, air-bronchogram and cavity of 46 cases with pathologically proved SPLC and 40 cases with benign nodules were analyzed retrospectively.
材料和方法：分析经手术病理证实的46例SPLC及40例良性结节的空泡征、细支气管充气征和空洞的CT表现。
On the left, nodules are so numerous, that an air bronchogram is visible.
在左侧，结节数量众多，以致可见空气支气管征。
Results: We found some signs are of great importance: opaque glass sign, alveolar nodular sign, pathologic air bronchogram sign.
结果：磨砂玻璃征，腺泡样结节，病理性支气管气相具有重要的诊断价值。
Conclusion Air bronchogram can be seen in several pulmonary nodules, it does not appear to be the characteristic of small peripheral carcinoma especially adenocarcinoma.
结论空气支气管征可见于多种结节性肺病变，它似乎不是外周型小肺癌尤其腺癌的特征。
Results Typical nodules with deep lobulated sign, spiculated sign, vacuole sign, air bronchogram, pleural indentation, and vessel convergence has great value in the diagnosis of malignant SPN.
结果典型结节并具有深分叶征，毛刺征，小泡征，含气支气管征，胸膜凹陷征，血管集束征对恶性结节的诊断具有较高价值。
Of the 4 mass-type foci in 3 cases, 3 had air bronchogram sign and 2 had irregular necrosis cavities.
在肿块型3例4个肿块中，支气管充气征3个，伴不规则坏死空洞2个；
Of the 24 mixed-type foci in 5 cases, 10 had air bronchogram and 12 had ground-glass opacities.
混合型5例24个病灶，为多种表现并存，其中支气管充气征10个，磨玻璃征12个。
Of the 5 lobar consolidation-type in 3 cases, 5 had air bronchogram, and 2 had ground-glass opacities, and 1 had bronchial lumen obstruction.
肺叶实变型3例5个病灶，实变区内均见支气管充气征，其中边缘见磨玻璃征2个病灶，支气管腔明显狭窄阻塞1个病灶；
Of the 5 lobar consolidation-type in 3 cases, 5 had air bronchogram, and 2 had ground-glass opacities, and 1 had bronchial lumen obstruction.
肺叶实变型3例5个病灶，实变区内均见支气管充气征，其中边缘见磨玻璃征2个病灶，支气管腔明显狭窄阻塞1个病灶；
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