PT - JOURNAL ARTICLE AU - Andres F Henao-Martinez AU - Juan F Fernandez AU - Sandra G Adams AU - Carlos Restrepo TI - Lung Bullae With Air-Fluid Levels: What Is the Appropriate Therapeutic Approach? AID - 10.4187/respcare.01372 DP - 2012 Apr 01 TA - Respiratory Care PG - 642--645 VI - 57 IP - 4 4099 - http://rc.rcjournal.com/content/57/4/642.short 4100 - http://rc.rcjournal.com/content/57/4/642.full AB - Air-fluid levels within emphysematous lung bullae are a relatively uncommon occurrence in patients with preexisting bullous disease, and are not commonly reported. We report 2 cases of new onset air-fluid levels in patients with underlying bullous disease with substantially different clinical presentations but with clinical improvement after medical therapy only.