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目的探讨孤立型细支气管肺泡癌的特征性CT表现及其诊断价值。方法回顾性分析24例经手术病理证实的孤立型细支气管肺泡癌,观察病变的分布部位、内部结构、边缘特征并与病理对照。结果 24例均为周围型,14例可见磨玻璃征,10例可见空泡征,13例可见血管集束征,17例可见胸膜凹陷征,13例可见毛刺征。结论多排螺旋CT能清楚显示孤立型细支气管肺泡癌的内部结构及边缘特征,磨玻璃密度结节、空泡征、含有磨玻璃密度的混杂结节往往提示孤立型细支气管肺泡癌的诊断。
Objective To investigate the characteristic CT findings and the diagnostic value of isolated bronchioloalveolar carcinoma. Methods A retrospective analysis of 24 cases of pathologically confirmed isolated bronchioloalveolar carcinoma, observe the distribution of lesions, internal structure, edge features and pathological control. Results All the 24 cases were peripheral type, 14 cases could be seen with vitrified vitreous, 10 cases showed vacuolar sign, 13 cases showed vascular convergence sign, 17 cases showed pleural indentation, and 13 cases showed burr sign. Conclusion Multi-slice spiral CT can clearly show the internal structure and marginal features of isolated bronchioloalveolar carcinoma. The milled glass density nodules, vacuole signs and mixed nodules with milled glass density often suggest the diagnosis of isolated bronchioloalveolar carcinoma.