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目的:探讨肺泡蛋白沉积症(PAP)支气管肺泡灌洗术(BAL)前后的主要CT表现,以提高对本病的认识及评价BAL后的效果。方法:回顾性分析25例经病理证实为PAP的CT表现,观察病灶的范围、形态、边界及对比BAL前后的变化。结果:PAP的CT表现呈多样化,主要归纳为:地图征、碎石路征、肺水肿样及肺实变征。BAL后15例显著改善。结论:CT能直观显示PAP的影像特征,对该病有较高的诊断价值,同时可评价本病BAL后的效果,确诊依赖病理学证实。
Objective: To investigate the main CT findings of pulmonary alveolar proteinosis (PAP) before and after bronchoalveolar lavage (BAL) in order to improve the understanding of this disease and evaluate the effect of BAL. Methods: The CT findings of 25 pathologically confirmed PAPs were retrospectively analyzed. The extent, morphology, boundary of the lesion and the changes before and after BAL were compared. Results: PAP showed a variety of CT manifestations, mainly summarized as: map levy, gravel road signs, pulmonary edema and lung consolidation. Fifteen patients were significantly improved after BAL. Conclusion: CT can directly display the image features of PAP, and has a high diagnostic value for the disease. At the same time, the effect of BAL after the diagnosis of this disease can be evaluated. The diagnosis is confirmed by pathology.