随着人口的老龄化及慢性阻塞性肺病（ＣＯＰＤ）发病率的不断增加，老年气胸发病率也有增加趋势。且因原发病及老年退行性变化的问题，其临床表现及体征多不典型，部分可表现为哮喘样发作，现报道４例。１临床资料１．１一般资料本组４例均符合ＷＨＯ关于ＣＯＰＤ诊断标准... As the population ages and the incidence of chronic obstructive pulmonary disease (COPD) increases, the incidence of pneumothorax in the elderly also tends to increase. And because of the primary disease and degenerative changes in elderly patients, the clinical manifestations and signs of atypical, and some can be manifested as asthma-like attack, are reported in 4 cases. 1 Clinical data 1.1 General Information The group of 4 patients are in line with the WHO diagnostic criteria for COPD ...