Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right pleural catheter again terminates over the left lower lung . Right pleural effusion is small , improved from the prior study . Degree of opacification of the right lower lobe is improved . Left lower lobe demonstrates mild linear atelectasis but is otherwise clear . Heart size mediastinal contours are normal . Small right apical pneumothorax is again seen .
    OUTPUT:
    
Interval decrease in size of right pleural effusion and improved aeration of the right lower lobe . Stable small right apical pneumothorax .