儿童SARS与支原体肺炎的胸部影像对照观察

目的探讨儿童SARS和支原体肺炎(MP)的临床影像特征.方法回顾分析临床确诊的38例SARS患儿和100例MP患儿的临床和影像学资料. 结果 SARS组和MP组影像表现可为四种类型:间质浸润型:主要表现为肺纹理增多、紊乱、模糊及网状模糊影,部分伴肺门影增大.SARS组8例;MP组46例.小叶实质浸润型:主要表现为斑点状、斑片状或密度不均片状影.SARS组4例;MP组13例.肺段实质浸润型:病变累及一个或一个以上肺段、叶,呈大片状实变阴影.SARS组23例,MP组36例.混合型:主要表现为斑片状阴影和网状阴影混杂,肺纹理增强较明显.SARS组3例,MP组5例.结论儿童SARS以大片实变、单侧受累为主;MP以间质改变为主,常伴肺门结构紊乱.二者诊断需密切结合临床和实验室检查,且注意与相似疾病鉴别.

Control study of chest image in children with SARS and mycoplasmal pneumonia

Objective To access the characteristics of clinical imaging of severe acute respiratory syndrome (SARS) and mycoplasmal pneumonia (MP) in children for further understanding. Methods Clinical data and radiographic findings in 38 cases with clinical confirmed SARS and in 100 cases with MP were retrospectively analyzed. Chest radiograph was performed in all the patients, and addition chest high-resolution CT was given in a few of these patients. Results The radiological features of SARS and MP in these patients were divided into four patterns: pulmonary interstitial infiltration shown by coarse and enhanced or inordinate with reticular and drop shadows, 8 cases in SARS and 46 cases in MP; lobule consolidation represented by patchy shadows, 4 cases in SARS and 13 cases in MP; segment consolidation marked by massive consolidations involved with one or more segment and lobe; 23 cases in SARS (18 cases on unilateral lung) and 36 cases in MP (30 cases on unilateral lung); mixed pattern characterized by marked lung markings with patchy opacity and reticular shadows; 3 cases in SARS and 5 cases in MP. Conclusion Massive consolidation on unilateral lung predominated in children with SARS and interstitial changes with disorganized lung hilum in MP. It's necessary to combine clinic and laboratory examinations when diagnosing SARS and MP, and differentiate them from other similar diseases.