Methods: Transbronchial needle aspiration (TBNA) was taken on 40 cases patients with the peripheral tumor of lobar and segment bronchial.

• 方法:在气管镜检查过程中,对40例影像学检查提示肺叶段支气管腔外有肿物、气管镜检查管腔结构基本正常的患者行经支气管穿刺活检。