Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes have increased . In comparison to the prior study right pneumothorax is moderately increased in size . There is no appreciable pleural effusion . Right pleural catheter is in place . Cardiomediastinal silhouette is stable . Left lung is clear .
    OUTPUT:
    
Right pneumothorax has moderately increased in size .