Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is been interval placement of a pigtail pleural catheter . Unchanged marked lucent lung on the right , worse compared to the prior study with even a fewer lung marking . Severe emphysema in the left lung . Cardiomediastinal silhouette and hilar contours are unchanged . There is no large pleural effusion .
    OUTPUT:
    
Interval placement of a right pigtail pleural catheter with even fewer lung markings and no improvement in the right pneumothorax .