To investigate the significance of transbronchial needle aspiration (TBNA) in diagnosing paratracheal mediastinal lesions.
目的探讨经支气管镜针吸活检（TBNA）在纵隔疾病诊断中的价值。
2
The commonest pathologic cause of widening, deformity, or obliteration of this stripe is paratracheal lymph node enlargement.
该带增宽、变形或消失的最常见病因是气管旁淋巴结增大。
3
Because the trachea and thyroid gland adjoin to the subglottic area, the tumor invades them along with the superior mediastinum and lung by the way of paratracheal lymph drainage.