分布于肺外支气管的动脉有由颈总动脉发出的支气管支。
The bronchi were supplied by the branch of bronchus coming from the common carotid artery.
结论TBNA是一种阳性率高，特别是对支气管腔外新生物是一种简便安全、有效的检查方法。
Conclusion TBNA is one masculine gender rate is high, specially to the bronchial tube cavity outside newborn is one kind of simple security, the effective inspection method.
结论空气支气管征可见于多种结节性肺病变，它似乎不是外周型小肺癌尤其腺癌的特征。
Conclusion Air bronchogram can be seen in several pulmonary nodules, it does not appear to be the characteristic of small peripheral carcinoma especially adenocarcinoma.
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