Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse airspace opacities , left worse than right , have minimally improved in the right lung . The heart size is normal . There is no pneumothorax or pleural effusion . A right internal jugular central venous catheter terminates in the mid SVC , unchanged . The endotracheal tube terminates 3 cm above the carina . An orogastric tube passes through the esophagus , into the stomach , and inferiorly out of the field of view .
    OUTPUT:
    
Persistent bilateral airspace opacities , minimally improved in the right lung . Again , this could be secondary to infection , asymmetric cardiogenic pulmonary edema , or noncardiogenic edema such as ARDS .