机化性肺炎的胸部CT解读

Chest CT interpretation of organized pneumonia

机化性肺炎(organizing pneumonia,OP)是一种较为常见的间质来源疾病。在胸部CT上,OP主要表现为实变和/或结节伴支气管气相和牵拉性支气管扩张,以支气管血管束周围和胸膜下分布为著,还可见"反晕"征、条带状实变和小叶间隔旁实变等特征,可以呈现"游走"性。OP的诊断是在影像学基础上结合临床和病理的综合性评估。

Organizing pneumonia(OP)is a common lung interstitial disease.On chest CT,the main imaging manifestations of OP are consolidation and/or nodules with air bronchogram and traction bronchiectasis,predominantly peribronchovascular and subpleural regions."Reverse halo"sign,band-like consolidation and paralobular consolidation are also can be seen.Migratory behavior of lesions may be evident in follow up studies.The diagnosis of OP is a comprehensive analysis based on imaging combined with clinical and pathological findings.