Lams P M, Jolles H
Radiology. 1982 Feb;142(2):309-12. doi: 10.1148/radiology.142.2.7054819.
In patients with pneumothorax, the normal lung tends to maintain its original shape because its retractility is more or less uniform. Lobar collapse leads to a localized increase in the force of retraction and a greater tendency of air to collect in the overlying pleural space, sometimes leading to an unusual distribution of pleural air. Four cases of pneumothorax in supine patients with lobar collapse are presented. Knowledge of the factors governing the distribution of free pleural air is of value in the early detection of pneumothorax. In the presence of lobar collapse, and probably any degree of atelectasis secondary to airway obstruction, an unusual distribution of air should be expected.
在气胸患者中，正常肺脏往往会保持其原始形状，因为其回缩力或多或少是均匀的。肺叶萎陷会导致局部回缩力增加，空气更易积聚在上覆的胸膜腔中，有时会导致胸膜腔内气体分布异常。本文报告了4例仰卧位肺叶萎陷患者发生气胸的情况。了解影响游离胸膜腔内气体分布的因素对气胸的早期检测具有重要价值。在存在肺叶萎陷以及可能继发于气道阻塞的任何程度肺不张的情况下，应预期会出现异常的气体分布。
