Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest radiograph ___ at 04 :42 is submitted .
    OUTPUT:
    
Nasogastric tube courses below the diaphragm with the tip not identified . Right internal jugular central line has its tip in the distal SVC . Endotracheal tube has its tip 4 .5 cm above the carina . Heart remains stably enlarged . Bibasilar opacities are again seen likely reflecting atelectasis , although pneumonia or aspiration should also be considered . No pneumothorax . No pulmonary edema .