Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Endotracheal tube terminates 4 .0 cm above the carina . Nasogastric tube terminates below the diaphragm . Right internal jugular central catheter terminates in the upper SVC . Opacification of both lower lobes is unchanged since ___ . Small to moderate sized left pleural effusion is unchanged . No pneumothorax . Heart size and cardiomediastinal contours are stable .
    OUTPUT:
    
1 . Endotracheal tube terminates 4 .0 cm above the carina . 2 . Unchanged bilateral lower lobe opacification may represent atelectasis , though concurrent pneumonia is not excluded . Small to moderate left pleural effusion is unchanged .