Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP supine chest from ___ 05 :55 is submitted .
    OUTPUT:
    
Heart remains enlarged which may reflect pericardial effusion or cardiomegaly . Clinical correlation is advised . The endotracheal tube has its tip approximately 2 .3 cm above the carina . A nasogastric tube is seen coursing below the diaphragm with the tip not identified . The right subclavian PICC line is unchanged in position with its tip in the distal SVC near the cavoatrial junction . Mild perihilar edema is present . There are layering effusions with bibasilar patchy opacities , left greater than right , most likely reflecting compressive lower lobe atelectasis , although superimposed infection can not be excluded . No pneumothorax , although the sensitivity to detect pneumothorax is diminished given supine technique .