Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval re-expansion of right lower and middle lobes with mild residual atelectasis and possible small effusion . Lung fields are otherwise clear without focal consolidation . The cardiac borders and mediastinal silhouette are unchanged . A left internal jugular venous catheter has been removed . Tracheostomy appears unchanged .
    OUTPUT:
    
Re-expansion of right lower and middle lobes with mild residual atelectasis and possible small effusion .