Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal radiograph of the chest demonstrates a right sided chest tube in unchanged position ending at the lung apex with persistent right basilar pneumothorax which is slightly decreased compared to the prior study . Extensive subcutaneous emphysema is stable as is pneumomediastinum . Stable mild enlargement of the cardiac silhouette . Interval improvement in left retrocardiac atelectasis and stable small left pleural effusion .
    OUTPUT:
    
Slight decrease in size in right basilar pneumothorax