空洞型肺癌的CT特征分析

CT features of cavitating lung cancer

目的探讨空洞型肺癌的影像特征,提高该病的诊断率。方法总结28例肺内空洞型肺癌的CT表现,全部病例均由病理诊断证实。结果 28例癌性空洞,均为单发。右肺17例,左肺11例。瘤体平均直径4cm,分叶征20例,毛刺征22例。其中18例厚壁空洞,空洞内壁凹凸不平,13例见内壁结节,所有病例经过增强扫描,增强后壁结节和洞壁明显强化。鳞癌19例,腺癌6例,小细胞肺癌3例。结论综合分析瘤体的表现和增强的特点,可以对癌性空洞做出准确的判断。

Objective To study CT features of cavitating lung cancer so as to improve the diagnostic level.Methods CT features of cavitating lung cancer in 28 patients proved by pathology and operation were analyzed retrospectively.Results Solitary pulmonary cavity was found in all 28 cases.The lesions were located in th ringt ling lobe in 17 cases and left lobe in 11 cases.The mean cavity size was 4cm in diameter.Most of cavities（20cases）were slightly lobulated.Burr sign can be found in 22 cases.The cavity showed irregular thick wall in 18 cases and obvious wall nodules in 13 cases.Among 28 cases,19cases were squamous cell carcinomar,6cases adenocarinomar and 3cases were small cell carcinomar.All cases showed obvious enhancement on contrast-enhenced CT scan.Conclusion Combining with analysis of appearance and the enhencemet of the cavities,we can make the correct diagnosis of cavitating lung cancer.