trachobronchial cyst of mediastinum

例句：

1. 1.This condition is often associated with chronic obstructive pulmonary disease (COPD).
   这种状况常与慢性阻塞性肺疾病有关。
2. 2. The patient was diagnosed with a trachobronchial cyst of the mediastinum.
   患者被诊断出有气管旁囊肿。
3. 3.The treatment for this condition typically involves surgery to remove the cyst.
   这种状况的治疗通常包括手术来移除囊肿。