摘要
目的:探讨肺部磨玻璃密度影的CT特征及在肺内疾病诊断中的价值。方法:回顾分析经病理及临床综合诊断证实的32例以磨玻璃密度影为主要表现的肺部疾病CT、HRCT及临床资料,观察磨玻璃密度影的分布范围、出现部位、形态、伴随征象及动态变化。结果:32例中,以间质性病变为主的疾病15例,磨玻璃密度影呈弥漫性分布,其中外围型磨玻璃密度影11例,中央型磨玻璃密度影4例,12例伴有间质增厚及纤维化征象。以实质性病变为主的疾病10例,磨玻璃密度影呈限局性或弥漫性分布,4例伴有肺实变阴影。慢性阻塞性肺病7例,磨玻璃密度影呈小叶、亚肺段分布,常伴有病灶区小血管增粗和肺气肿表现。在动态观察的12例中,8例磨玻璃密度影消失,1例进展为蜂窝肺,1例病变范围增大,2例无明显变化。结论:肺部磨玻璃密度影是一种非特异性CT征象,可见于多种疾病,密切结合临床,观察分析磨玻璃密度影的分布范围、出现部位、形态、伴随征象及动态变化特点有助于缩小拟诊范围。
Objective：To evaluate the CT features of ground-glass opacity（GGD） in the lung and their clinical value for diagnosis of pulmonary diseases.Methods：The clinical,CT and HRCT materials of 32 cases GGO which were proved by pathology or clinical comprehensive diagnosis were included in this study.The range of distribution,locations of appearance,shapes,associated images and dynamic changes of GGO were analyzed in correlation with the final diagnosis retrospectively.Results：In these 32 cases,15 cases were interstitial diseases,in which GGO had diffuse distribution.Among them,the GGO located peripherally in 11 cases and centrally in 4 cases,with interstitial thickening or fibrosis shadow in 12 cases.In 10 cases of parenchymal diseases,the GGO had local or diffuse distribution,with pulmonary consolidation shadow in 4 cases.In 7 cases with chronic obstructive pulmonary diseases,the GGO had a lobular or segmental distribution with dilatation of vessels in the center of GGO and pulmonary emphysema sign.Of the 12 cases with follow-up,8 cases GGO disappeared,1 case progressed to honeycomb lung,1 case＇s range of lesion enlarged,2 cases had no change.Conclusion：GGO is a nonspecific finding on chest CT and may be seen in various diseases,close linkage with clinical history,observation and analysis of characteristics of ground-glass opacity in their range of distribution,locations of appearance,shapes,associated images and dynamic changes can narrow the range of diagnostic possibilities.
出处
《中国当代医药》
2011年第13期94-97,共4页
China Modern Medicine
