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目的探讨多层螺旋CT对孤立结节性周围型小肺癌的诊断和鉴别诊断价值。方法回顾性分析病理证实的孤立结节性周围型小肺癌25例的形态学特征及强化方式。结果 24例得到正确诊断,结果显示17例为实质性结节,其中血管集束征8例,分叶征12例,毛刺征9例,胸膜凹陷征6例,空泡征10例,增强后CT值增幅24.6-54.3Hu;8例为毛玻璃结节,其中6例可见血管集束征,2例见分叶征。结论 CT对于孤立结节周围型小肺癌具有重要诊断价值,尤其实质结节增强CT值增幅20-60Hu,以及毛玻璃结节出现血管集束征对诊断更具意义。
Objective To investigate the value of multislice spiral CT in the diagnosis and differential diagnosis of isolated nodular peripheral small lung cancer. Methods The morphological features and enhancement methods of 25 cases with isolated nodular peripheral small lung carcinoma confirmed by pathology were retrospectively analyzed. Results 24 cases were correctly diagnosed. The results showed that 17 cases were substantial nodules. Among them, 8 cases had vascular clustering, 12 cases had lobulation, 9 cases had spiculation, 6 cases had pleural indentation and 10 cases had vacuolization. CT Value increased 24.6-54.3Hu; 8 cases of frosted glass nodules, of which 6 cases can be seen vascular bundling sign, 2 cases see lobulation sign. Conclusion CT has important diagnostic value for small pulmonary nodules around solitary nodules. In particular, CT enhancement of nodules in nodules is increased by 20-60Hu, and the clustering of blood vessels in frosted glass nodules is more meaningful for the diagnosis.