Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior chest radiograph , the asymmetric perihilar opacities , left greater than right have improved . This likely represents a combination of resolving pulmonary edema and multifocal pneumonia . Small bilateral pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
the asymmetric perihilar opacities , left greater than right have improved . This likely represents a combination of resolving pulmonary edema and multifocal pneumonia .