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目的探讨快速生长周围型小肺癌的CT影像学特征及其与病理类型之间的关系。方法通过反复CT检查选择快速生长的周围型小肺癌(直径<20mm)12例,评价其CT特征及其与病理类型之间的关系。对每例患者均通过回顾性的方法评价其肿瘤倍增时间和CT影像学特征。结果9例患者呈实体瘤样生长,多数分界清楚、质地均匀、带有毛刺和分叶的软组织密度影,阴影内缺乏支气管充气征和小泡征。其余3例呈浸润性生长,表现为磨玻璃样阴影。12例患者多数为腺癌,少数为鳞状细胞癌和小细胞肺癌。结论多数周围型快速生长的肺癌为腺癌,少数为鳞状细胞癌和小细胞肺癌。这些肺癌多数呈实体瘤样生长,结节内缺乏支气管充气征或小泡征。
Objective To investigate the CT features of rapidly growing peripheral small lung cancer and its relationship with pathological types. Methods Twelve consecutive peripheral lung cancer samples (diameter <20 mm) were selected by repeated CT examinations to evaluate the CT features and their relationship with pathological types. The tumor doubling time and CT imaging features of each patient were evaluated retrospectively. Results Nine patients showed solid tumor-like growth. Most of them showed clear demarcation, uniform texture, soft tissue density with burr and lobulation, lack of bronchial inflatable sign and vesicle sign in the shadow. The remaining 3 cases showed invasive growth, the performance of ground-glass shadows. The majority of 12 patients were adenocarcinoma, a small number of squamous cell carcinoma and small cell lung cancer. Conclusion Most of the peripheral type of rapidly growing lung cancer is adenocarcinoma, a small number of squamous cell carcinoma and small cell lung cancer. Most of these lung cancer solid tumor-like growth, the lack of bronchial nodules or signs of bronchial congestion.