Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the cardiac and mediastinal silhouette which is moderately enlarged . There right - sided hydropneumothorax appears decreased as compared to the prior study . Increased right base opacity may in part be due to low lung volumes versus worsening right - sided consolidation . Evidence of pneumoperitoneum is re - demonstrated . Mild left base atelectasis with possible pleural effusion . Right chest wall subcutaneous emphysema is noted . Dense contrast is seen in the left splenic flexure .
    OUTPUT:
    
Interval decrease in right - sided hydro pneumothorax . Low lung volumes with increase in right mid to lower lung opacity may be due to worsening consolidation . Right chest wall subcutaneous emphysema .