Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes with bibasilar atelectasis . The lungs are otherwise clear . There is a small amount of subcutaneous air seen in the right supraclavicular region . The esophagus is distended with air and there is an NG tube seen coursing below the diaphragm , however the tip is not definitively seen . Heart size is stable . The mediastinal and hilar contours are stable . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Air-filled esophagus with NG tube below the diaphragm , however the tip is not visualized . 2 . Low lung volumes with bibasilar atelectasis .