Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right apical pneumothorax is overall unchanged , with maximal layer of 2 .1 cm . Persist right base opacification due to pleural effusion and atelectasis . Right pleural drain is unchanged . Left lung is still clear . Heart size is mildly enlarged but stable .
    OUTPUT:
    
Stable right apical pneumothorax and right base atelectasis and pleural effusion .