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本文对１２２例病人共１２４个直径≤３ｃｍ的结节（恶性９７个，良性２７个）进行了薄层ＣＴ与病理对照研究，薄层ＣＴ显示结节内有空气支气管征２０例（２１％），且独见于肺泡癌、腺癌及鳞癌，统计学处理前二者与后者之间有显著性差异。我们的结论认为周围型小结节中出现空气支气管征是恶性结节的一个肯定征象，且可进一步提示肺癌组织类型的诊断。
In this paper, 122 patients with a total of 124 diameter ≤ 3cm nodules (malignant 97, benign 27) thin-section CT and pathological control study, thin-layer CT showed nodules with air bronchogram in 20 cases (21%) , And only seen in alveolar carcinoma, adenocarcinoma, and squamous cell carcinoma. There was a significant difference between the two before and after statistical analysis. We conclude that air bronchograms are a positive sign of malignant nodules in peripheral nodules and may further suggest the diagnosis of lung cancer tissue types.