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目的:探讨PAP的临床特征及CT表现,提高对PAP的认识。方法:对1例PAP患者的临床特点、CT表现及诊断方法进行分析。结果:PAP病因不明,临床表现无特征性,CT表现为两肺弥漫性病变,呈地图样改变及“铺路石征”。结论:PAP是一种罕见病,临床特征性较低,误诊率较高,应根据CT的典型特征表现,并结合肺功能检查、血气分析、PAS染色阳性做出诊断。
Objective: To investigate the clinical features and CT findings of PAP and to improve the understanding of PAP. Methods: The clinical features, CT findings and diagnosis of one patient with PAP were analyzed. RESULTS: The etiology of PAP was unknown, and the clinical manifestations were non-characteristic. The CT findings were diffuse lesions of both lungs, showing a map-like change and a “paving stone sign.” Conclusions: PAP is a rare disease with low clinical features and high misdiagnosis rate. It should be based on the typical features of CT, combined with pulmonary function tests, blood gas analysis and PAS staining.