Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 15 16 is submitted .
    OUTPUT:
    
Left internal jugular central line is unchanged in position . Heart remains enlarged which may reflect cardiomegaly , although pericardial effusion should also be considered . There are small layering effusions . Perihilar fullness and patchy bibasilar opacities are now present and likely reflect mild pulmonary edema with compressive atelectasis of the lower lobes . Incidental note is made of an azygos lobe . No pneumothorax .