英语语法分析

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。

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。

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.

以其和气管及甲状腺密接的解剖相关，常使肿瘤向下及向外侵犯，并借由气管旁淋巴组织转移到上纵膈腔及肺部。