肺内淋巴结伴周围炎症与胸膜下微浸润性肺腺癌的CT鉴别分析

CT differential analysis of pulmonary lymph nodes with peripheral inflammation and subpleural microinvasive lung adenocarcinoma

目的:探讨肺内淋巴结(Intrapulmonary lymph nodes,IPLNs)伴周围炎症与胸膜下微浸润性肺腺癌(Minimally invasive adenocarcinoma,MIA)在多层螺旋CT上的鉴别点,提高两者的CT鉴别诊断能力。方法:回顾性分析本院经病理证实的20例肺内淋巴结伴周围炎症患者与31例胸膜下微浸润性肺腺癌患者的病例资料,分析两组患者临床特征及CT征象,并进行统计学分析。结果:两组的位置、实性成分占比、实性成分密度、尖角征、线状密度影具有统计学差异。结论:综合分析肺内淋巴结伴周围炎症在CT形态学表现如特殊的尖角征、线状密度影以及实性成分特征分析,有助于提高其与MIA鉴别,有效提示病灶性质。

Objective:To explore the differential diagnosis of intrapulmonary lymph nodes(IPLNs)with peripheral inflammation and subpleural microinvasive lung adenocarcinoma(minimally invasive adenocarcinoma,MIA)by multi-slice spiral CT,and to improve the ability of differential diagnosis.Methods:Retrospective analysis of 20 cases of IPLNs with peripheral inflammation and 31 cases of MIA was performed in our hospital.The clinical characteristics and CT signs of the two groups of patients were analyzed,and statistical analysis was performed on them.Results:There were statistical differences in the position,the proportion of solid components,the density of solid components,sharp angle sign and linear density shadow between the two groups.Conclusion:A comprehensive analysis of the CT morphological features of intrapulmonary lymph nodes with peripheral inflammation,such as special sharp angle sign,linear density shadow and solid component analysis,is helpful to improve the differentiation from MIA and effectively indicate the nature of the lesions.