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目的 分析周围型肺癌不同时期的X线征象 ,以提高影像诊断水平。材料与方法 搜集有X线随访资料的早期周围型肺癌 14例 ,着重总结其早期征象。结果 其早期征象以肺内孤立结节状病灶为主 ,平均直径 1.6cm ,密度中等偏低 ,进展期征象以肺内圆或椭圆形肿块为主 ,平均直径 4.6 5cm ,密度中等偏高 ;瘤体内部结构 :小泡征见于早期 ,钙化病灶见于进展期 ,空洞征进展期比早期出现率高 ;瘤体边缘征象 :毛刺、分叶及胸膜凹陷征等 ,进展期亦比早期多见 ,且更明显。结论 肺内孤立结节 ,直径≤1.5cm ,周边有毛刺、分叶及胸膜凹陷征 ,灶内有小泡征 ,不论其临床有无症状 ,均应提示早期肺癌 ,且以腺癌可能性大。
Objective To analyze the X-ray signs of peripheral lung cancer at different stages so as to improve the imaging diagnosis. Materials and Methods Fourteen cases of early peripheral lung cancer with X-ray follow-up data were collected, and their early signs were summarized. Results The early signs were mainly isolated nodular lesions in the lung with an average diameter of 1.6 cm and a moderately low density. The signs of advanced disease were mainly internal or oval lung mass with an average diameter of 4.6 cm and medium density. The internal structure of the body: the signs of vesicles were found in the early stage, the calcified lesions were found in the advanced stage, and the appearance of the empty stage was higher than that in the early stage. The edge signs of the tumor were burr, lobulation and pleural indentation, More obvious. Conclusions Isolated nodules in the lung with a diameter of less than or equal to 1.5cm have burr, lobulation and pleural indentation around the lesion and small vesicle sign in the lesion, regardless of clinical symptoms, early lung cancer should be indicated and adenocarcinoma is more likely .