Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well inflated . No new focal consolidation , pleural effusions , or pneumothorax detected . Previously described left lung opacities have improved , but an opacity adjacent to the left heart border is likely residual from the earlier process .
    OUTPUT:
    
No evidence of pneumothorax . Opacity adjacent to the left heart border is likely residual from the prior infectious / inflammatory process .