【摘要】 目的 分析周围型肺腺癌的CT征象特点以提高CT诊断正确率。 方法 回顾性分析51例行CT引导下胸部穿刺术并经细胞学证实的周围型肺腺癌CT表现。 结果 CT扫描直接显示，51例周围型肺腺癌主要CT征象是分叶征，毛刺征，棘突征，空泡征或空气支气管征，胸膜凹陷征，血管集束征等。 结论 综合分析CT征象并结合临床资料，对周围型肺腺癌的正确诊断有很大提高。

    【关键词】 周围型肺腺癌;断层摄影术;对比研究;诊断

    【Abstract】 Objective To analyze the CT features of peripheral pulmonary adenocarcinomas so as to improve the accuracy of the diagnosis.Methods The CT features of51patients with peripheral pulmonary adenocarcinomas proved by CT-guided lung biopsy and cytology，were studied retrospectively.Results CT scan directly showed that the main signs of peripheral pulmonary adenocarcinoma were deep lobulation sign，spiculation sign，spiculate protu-berance sign，vacuole sign or air bronchogram，pleural identation sign，vessel convergence sign，mediastinal lymph node enlargement and metastasis into distant organs.Conclusion A comprehensive analysis of basic CT features combined with clinical information ......