“碎纹石路表现”(crazy paving appearance, CPA)是一种气腔疾病中的HRCT征象,表现为呈地图样分布、重叠有小叶间隔增厚的磨玻璃影。以前认为“CPA”是肺泡蛋白沉积症的特有征象,后来认识到许多疾病都可产生“碎纹石路表现”。作者报道了10例见到“CPA”的各种疾病,其中包括:卡氏肺囊虫肺炎4例,肺出血1例,急性放射性肺炎1例,成人呼吸窘迫综合征1例,药物引起的肺炎1例,肺泡蛋白沉积症1例,间质性肺炎1例,后2例均有病理证实。作者讨论了“CPA”形成的原因。有病理检查的 Crazy paving appearance (CPA) is a HRCT sign of air-chamber disease characterized by a map-like pattern with overlapping ground-glass opacities. It was previously thought that “CPA” is a hallmark of pulmonary alveolar proteinosis, and later realized that many diseases can produce “broken stone road performance.” The authors reported 10 cases of various diseases including “CPA”, including 4 cases of Pneumocystis carinii pneumonia, 1 case of pulmonary hemorrhage, 1 case of acute radiation pneumonitis, 1 case of adult respiratory distress syndrome, drug-induced pneumonia 1 case, alveolar proteinosis in 1 case, interstitial pneumonia in 1 case, 2 cases were pathologically confirmed. The author discusses the causes of “CPA” formation. With pathological examination