内源性脂性肺炎的CT诊断探讨  

CT Diagnosis of Endogenous Lipid Pneumonia

作　　者：王耀程[1] 孔新[1] 宋立军[1] 郭炜[1] 魏龙晓[1] 魏经国[1] 潘爱国[1] 孙巧黎[1] 梁国民[1] 邬秋珍[1] 

机构地区：[1]第四军医大学唐都医院放射科,西安710038

出　　处：《临床放射学杂志》2002年第5期352-354,共3页Journal of Clinical Radiology

摘　　要：目的　探讨内源性脂性肺炎的CT诊断。资料与方法　回顾性分析 8例经手术病理证实的内源性脂性肺炎的CT征象。结果　肿块样病变 2例 (右肺上叶 ) ,肿块密度低于胸壁组织 (≤ 2 0HU)。肺叶或肺段实变 2例 ,分别位于右肺上叶及左肺上叶 ,实变区密度接近水样密度 (- 2～ 10HU)。肺叶不张 4例 ,分别位于右肺中叶、上叶及左肺上叶、下叶。病变肺组织肺泡内有大量泡沫细胞和间隔的纤维增生 ,2例有肉芽肿样改变。结论　内源性脂性肺炎多累及肺叶或肺段 ,可表现为肿块、实变或不张等多种征象 ,易误诊为结核、肿瘤等 ,最终诊断需依赖于病理组织学检查。Objective To study CT diagnosis of endogenous lipid pneumonia.Materials and Methods CT findings in 8 patients with pathologically proved endogenous lipid pneumonia were retrospectively analyzed.Results CT findings included: (1) phymatoid lesion (n=2), located in right upper lobe with a CT value lower than soft tissue (≤20Hu); (2) lobar or segmental consolidation (n=2), located at right or left upper lobe with a CT value approximate to water (-2～10Hu); (3) lobar atelectasis (n=4), involved right middle (n=1) or upper lobe (n=1), and left upper (n=1) or lower lobe (n=1). Pathologically, large amounts of foam cells in diseased pulmonary alveoli and interstitial fibroplastic proliferation were seen, pulmonary cholesterol granuloma was found in 2 cases.Conclusion Endogenous lipid pneumonia mainly involves pulmonary lobe or segment, presenting as mass, consolidation or atelectasis, which may be easily misdiagnosed as tuberculosis or neoplasm. A definitive diagnosis dependson pathological evidence.

关 键 词：内源性脂性肺炎 CT诊断 X线计算机体层摄影术 病变类型 

分 类 号：R816.4[医药卫生—放射医学]