肺隔离症为肺先天性发育畸形 ,有叶内型和叶外型之分 ,好发于下肺叶的后基底段和内基底段 ,大多发生在左侧 ,而发生在右侧者少见。现将经我院手术病理证实右肺隔离症 4例 ,回顾分析 ,吸取教训 ,以提高对Ｘ线平片的诊断准确性。1　资料和方法男 3例 ,女 1例 ,最大年龄 35岁 ,最 Pulmonary sequestration pulmonary congenital malformations, with leaves and leaf shape of the points, occur in the lower lobe of the basal and end of the basal segment, mostly in the left, while in the right is rare. Now by our hospital surgical pathology confirmed right lung isolation in 4 cases, retrospective analysis, lessons learned to improve the diagnostic accuracy of plain radiographs. 1 Materials and Methods Male 3 cases, female 1 case, the maximum age of 35 years old, most