Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ETT terminates approximately 3 cm above the carina . There has been interval placement of an NG tube , which courses below the diaphragm , however the tip is not visualized . There are persistent right middle lobe and retrocardiac opacities , unchanged from prior . Persistent mild pulmonary edema . No pleural effusions . No pneumothorax .
    OUTPUT:
    
1 . Appropriately positioned ETT and NG tube . 2 . Persistent multifocal airspace opacities . 3 . Persistent mild pulmonary edema .