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目的:对周围型肺癌CT表现特征进行分析,总结其CT表现特征,提高CT诊断准确率。方法:58例患者均行常规CT平扫和增强扫描,并对部分病灶行薄层高分辨扫描。结果:瘤体征象空泡征11例,支气管充气征18例,瘤体细纱砾状弥散钙化7例,坏死液化形成空洞16例;肿瘤—肺交界带,毛刺征54例,分叶征56例;胸膜改变,胸膜凹陷征36例;病灶增强,均匀强化18例,环状强化12例,结节强化28例。结论:CT平扫和增强扫描加病灶薄层高分辨扫描能很好地显示周围型肺癌瘤体及瘤周比较细微的结构,通过总结分析这些影响特征,提高周围型肺癌的诊断准确率。
Objective: To analyze the CT features of peripheral lung cancer, summarize its CT features and improve the diagnostic accuracy of CT. Methods: Fifty-eight patients underwent routine CT scan and contrast-enhanced scan, and high-resolution thin-layer scanning was performed on some lesions. Results: There were 11 cases of vacuolization signs in bronchus, 18 cases of bronchial inflamation sign, 7 cases of gravel diffuse calcification in tumor body, 16 cases of necrosis liquefaction, 16 cases of tumor-lung junction zone, 54 cases of burr sign and 56 cases of lobulation sign ; Pleural changes, 36 cases of pleural indentation; lesions enhanced, uniform enhancement in 18 cases, 12 cases of annular enhancement, nodular enhancement in 28 cases. Conclusion: CT scan and enhanced scan plus thin-layer high-resolution scan of the lesion can well show the microscopic structure of peripheral lung cancer and tumor circumference. By summarizing and analyzing these influencing characteristics, the diagnostic accuracy of peripheral lung cancer can be improved.