Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right chest tube is in unchanged position . Extensive subcutaneous emphysema is stable . Visualized small right basilar pneumothorax is minimally larger , likely from change in distribution . There is no mediastinal shift . Increased interstitial markings in bilateral lung bases likely reflect emphysema and superimposed edema . There is no large pleural effusion . Cardiomediastinal silhouette is normal size .
    OUTPUT:
    
1 . Small right lung base pneumothorax is minimally larger compared to 1 hr ago , likely a due to change in distribution . 2 . Right chest tube is in unchanged position . If clinically indicated , the position of the chest tube can be better evaluated with CT which will be helpful to rule out the possibility of its position in the fissure . 3 . Stable extensive subcutaneous emphysema .