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目的:通过增强CT观察健康查体人群和肺癌患者的纵隔及肺内淋巴结变化情况,探讨不同类型、不同部位肺癌的淋巴结分布及可能的转移规律。方法:对2015年1月至6月进行增强CT检查的健康查体人群和病理确诊的肺癌患者,分别统计分析健康查体人群的纵隔及肺内淋巴结的大小及分布情况;不同类型、不同部位肺癌患者的纵隔及肺内淋巴结的大小及分布情况。结果:健康查体人群:人均淋巴结3.1个,以2、3、4、5区多见,右侧多于左侧,多为<5 mm的小淋巴结,偶有5~10 mm的中等淋巴结,无>10 mm的大淋巴结;肺癌患者纵隔淋巴结明显增多,以肿大淋巴结多见;小细胞肺癌淋巴结高于鳞癌、腺癌患者,常多达50枚以上;1-10区均可见大小不等淋巴结,肿大淋巴结以2、4、7、10区多见;无左右区别;与肺部肿瘤体积大小无明显相关;而鳞、腺癌患者纵隔淋巴结数目和大小与肿瘤大小、部位相关,肿瘤小者则淋巴结少,且肿大的淋巴结更少;肿瘤大者则纵隔各区均可见大小不等淋巴结,肿大淋巴结以4、7、10区常见。结论:健康查体人群可见淋巴结多为<5 mm的小淋巴结;小细胞肺癌常见淋巴结数目多达50枚以上;鳞、腺癌的淋巴结变化情况和肿瘤大小、部位相关。结合淋巴结的数目与肿瘤大小、部位,能更好的对CT下肺癌患者的纵膈淋巴结进行全面探讨与评估。
OBJECTIVE: To observe the changes of mediastinal and intrapulmonary lymph nodes in healthy people and lung cancer patients by enhanced CT and to explore the distribution of lymph nodes and possible metastasis in different types and locations of lung cancer. Methods: The size and distribution of mediastinal and intrapulmonary lymph nodes in healthy volunteers were statistically analyzed in patients with lung cancer who underwent enhanced CT examination between January 2015 and June 2015 and those with pathologically confirmed lung cancer. The different types and locations Lung cancer in the mediastinum and lung lymph node size and distribution. Results: Healthy people: 3.1 per capita lymph nodes in 2,3,4,5 area more common on the right than the left, mostly less than 5 mm of small lymph nodes, occasional 5 ~ 10 mm of medium lymph nodes, No> 10 mm of large lymph nodes; lung cancer patients significantly increased mediastinal lymph nodes to lymph nodes more common; small cell lung cancer lymph nodes higher than squamous cell carcinoma, adenocarcinoma patients, often up to 50 or more; And other lymph nodes, enlarged lymph nodes to more common in the 2,4,7,10 area; no left and right differences; no significant correlation with the size of the lung tumor volume; and scales and adenocarcinoma patients with mediastinal lymph nodes number and size and tumor size, location, Small tumor is less lymph nodes, and enlarged lymph nodes less; large tumor in the mediastinal area can be seen ranging in size ranging from lymph nodes, enlarged lymph nodes 4,7,10 area common. Conclusion: The number of lymph nodes in lymph nodes is less than 5 mm in healthy people. The number of common lymph nodes in small cell lung cancer is more than 50. The changes of lymph nodes in squamous cell carcinoma and adenocarcinoma are related to tumor size and location. Combined with the number of lymph nodes and tumor size, location, better CT of lung cancer in patients with mediastinal lymph nodes to conduct a comprehensive discussion and assessment.