Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral perihilar patchy opacities may relate to pulmonary edema although multifocal infectious process is not excluded in the appropriate clinical setting . There is no pleural effusion or pneumothorax . The cardiac silhouette is moderately enlarged . Mediastinal contours are unremarkable .
    OUTPUT:
    
Bilateral perihilar patchy opacities may relate to pulmonary edema but infectious process is not excluded in the appropriate clinical setting . Enlarged cardiac silhouette . No pleural effusion seen .