小细胞肺癌的CT征象、诊断和鉴别诊断

目的探讨小细胞肺癌的CT征象。方法选择我院2009年1月～2011年1月收治的小细胞肺癌与非小细胞肺癌患者各36例。所有患者均行64层螺旋CT平扫和增强检查，比较两组的肿瘤位置、强化、形态、支气管闭塞和肺不张、胸腔积液、纵隔淋巴结肿大、大血管受侵情况等。结果小细胞肺癌多为中央型，肿瘤与支气管长轴平行，晚期发生支气管闭塞合并肺不张，而非小细胞肺癌早期即可发生阻塞性改变；小细胞肺癌纵隔淋巴结肿大或者融合、大血管受侵犯发生率高。结论小细胞肺癌与非小细胞肺癌的CT表现有一些特征性区别．可作出倾向性诊断。

Small cell lung cancer CT features, diagnosis and differential diagnosis

Objective To study the CT features of small cell lung cancer. Methods Selected 36 cases of small cell lung cancer and 36 cases non-small cell lung cancer, All cases received CT plain and enhancement scans,the tumor location, aggrandizement, morphology, bronchial occlusion and atelectasis, pleural effusion, mediastinal lymphadenopathy, vascular invasion were compared betw two groups. Results The small cell lung carcinoma had central type, and bronchial tumor with parallel to the long axis, and Late occurrence of bronchial occlusion and complicated with atelectasis, non-small cell lung cancer occurs in the early stage; non-small cell lung cancer with mediastinal lymphadenopa- thy or fusion, large blood vessels invaded by high incidence. Conclusion CT performance of small cell lung cancer and non-small cell lung cancer has some characteristic difference,and it can make tendency diagnosis.