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目的:分析总结周围型小肺癌胸部CT影像学特点,提高周围型肺癌的影像诊断水平。方法:搜集52例经手术病理证实直径≤3 cm的周围型小肺癌的胸部CT影像学资料进行分析。全部病例术前均行螺旋CT扫描,其中行HRCT扫描20例,增强扫描32例。结果:胸部CT影像学特点为:分叶征45例,毛刺征40例,胸膜凹陷征29例,血管纠集征28例,空泡征17例,空气支气管征10例。在32例增强扫描病例中,30例CT值增幅均>35 Hu。结论:螺旋CT扫描与HRCT的结合或增强扫描,对周围型小肺癌的诊断与鉴别诊断具有重要意义。
OBJECTIVE: To analyze and summarize the chest CT features of peripheral small lung cancer and to improve the imaging diagnosis of peripheral lung cancer. Methods: Thoracic CT imaging data of 52 cases of peripheral small lung cancer with diameter ≤3 cm confirmed by pathology were collected for analysis. All cases underwent preoperative spiral CT scan, including 20 cases of HRCT scan, enhanced scan in 32 cases. Results: The features of chest CT were as follows: 45 cases of lobulation, 40 cases of spiculation, 29 cases of pleural indentation, 28 cases of vascular consolidation, 17 cases of vacuolization and 10 cases of air bronchus. In 32 cases of enhanced scanning, the CT value of 30 cases were> 35 Hu. Conclusion: The combination of spiral CT scan with HRCT or enhanced scan is of great significance for the diagnosis and differential diagnosis of peripheral small lung cancer.