Leatherman J W, McDonald F M, Niewohner D E
South Med J. 1985 Jun;78(6):708-10. doi: 10.1097/00007611-198506000-00023.
Eight patients had air-fluid levels in the lung as a result of fluid accumulation in preexisting bullae. In four cases the cause was peribullous pneumonitis; in the other four cases the cause could not be determined. All patients had a favorable clinical course while intrabullous fluid was present. The initial interpretation of air-fluid levels was correct in only two instances. Differentiation of fluid-containing bullae from other causes of air-fluid levels is important so that unnecessary diagnostic and therapeutic maneuvers can be avoided.
8例患者因原有肺大疱内积液而出现肺内气液平面。4例病因是肺大疱周围肺炎；另外4例病因无法确定。所有患者在肺大疱内有液体存在期间临床过程良好。气液平面的最初诊断仅在2例中正确。区分含液性肺大疱与气液平面的其他病因很重要，这样可以避免不必要的诊断和治疗操作。
