題目

Unless surgical risks are unusually high, bronchogenic cysts should be removed as soon as possible to avoid other, more serious complications. 好發於下肺葉，通常伴隨有感染及敗血症，但有約20%的人不會有症狀. Surgical resection is the best way for diagnosis and treatment. Both open surgery and thoracoscopy are appropriate for the selected candidates.  Congenital lobar emphysema: 因支氣管阻塞造成氣體留滯於遠端肺葉，繼而肺葉不正常擴張，可能導致壓迫其他正常肺葉 肺內游離肺: 左 > 右，下葉 > 上葉 肺葉外: 由腹主動脈的分支穿過橫膈所供應，發生部位 左>右。 大家不太提回流，是因為回流是正常的。