Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is the right chest tube , similar in position . The right hemidiaphragm remains elevated . Extensive subcutaneous emphysema along the right chest and abdomen is again noted . No obvious pneumothorax is detected . Patchy opacity along the mid and lower right chest wall and atelectasis at the right base again noted , grossly similar to the prior study . The possibility of a small amount of pleural fluid is suspected , also similar to the prior study . Minimal atelectasis in the left costophrenic region appears slightly more pronounced on the current study . Equivocal minimal blunting at the left costophrenic angle noted , without gross effusion . Doubt overt CHF . Cardiomediastinal silhouette is partially obscured , but grossly unchanged .
    OUTPUT:
    
Overall appearance is similar to the prior study . Subtle improvement at the right base and subtle improvement at the left base are suggested . No obvious right - sided pneumothorax , though extensive subcutaneous emphysema is again seen on the right .