Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-erect chest film ___ at 04 :55 is submitted .
    OUTPUT:
    
Endotracheal tube with tip at the thoracic inlet . Nasogastric tube seen coursing below the diaphragm with the tip not identified . Persistent low lung volumes with patchy bibasilar opacities and patchy opacity in the right mid lung . These findings could reflect aspiration , pneumonia , or atelectasis . Clinical correlation is advised . No evidence of pulmonary edema . No large effusions . No pneumothorax . Overall cardiac and mediastinal contours are stable .