Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral diffuse interstitial thickenings are identified , with a more prominent perihilar distribution . There is obscuration of the margin of both hemidiaphragms suggesting bibasilar atelectasis . There might be a small left - sided pleural effusion . No cardiomegaly . No pneumothorax .
    OUTPUT:
    
Findings compatible with pulmonary edema . Superimposed infection can not be excluded .