secondary pyothorax

例句：

1. 1. The patient was diagnosed with secondary pyothorax and required immediate medical attention.
   患者被诊断出患有次级气胸，需要立即医疗关注。
2. 2.The doctor performed a chest X-ray to rule out any secondary pyothorax.
   医生进行了胸部X光检查，以排除任何次级气胸。
3. 3.In some cases, secondary pyothorax can be caused by an underlying lung infection.
   在某些情况下，次级气胸可能是由肺部感染引起的。