Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pneumomediastinum appears to be regressing . Moderate left pleural effusion has increased in size . The opacity adjacent to the left cardiac border likely represents atelectasis , but consolidation is not excluded . Small pneumothoraces persist bilaterally . Cardiomediastinal contours are stable .
    OUTPUT:
    
1 . Improved pneumomediastinum . 2 . Moderate left pleural effusion has increased .