Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are diffuse bilateral opacities and haziness and indistinctness of the hila , most likely due to moderate - to - severe pulmonary edema . The cardiac silhouette is top normal to mildly enlarged . The aorta is tortuous . No large pleural effusions are seen . There is no pneumothorax .
    OUTPUT:
    
Bilateral perihilar opacities , most likely due to pulmonary edema ; however , component of infection is difficult to exclude in the appropriate clinical setting . Followup after diuresis can be obtained for further evaluation .