Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal semi-erect AP portable view of the chest was obtained . There are prominent bilateral predominantly perihilar opacities which may be due to severe pulmonary edema / ARDS , possible multifocal infection . There is blunting of the costophrenic angles and small pleural effusions are not excluded . The cardiac silhouette is likely top normal to mildly enlarged , although not well assessed due to right lung base opacities . Aortic knob is calcified . No evidence of pneumothorax is seen .
    OUTPUT:
    
Extensive perihilar opacities raise concern for severe pulmonary edema / ARDS , possible multifocal infection . Blunting of the costophrenic angles , small pleural effusions not excluded .