pneumatothorax

例句：

1. 1. He was diagnosed with pneumothorax and required immediate surgery.
   他被诊断出患有肺气胸，需要立即进行手术。
2. 2.The patient's chest X-ray showed a pneumothorax, which required immediate attention.
   患者的胸部X光显示有肺气胸，需要立即关注。
3. 3.The doctor explained that pneumothorax can be caused by various factors, including trauma or infection.
   医生解释说，肺气胸可以由多种因素引起，包括创伤或感染。