Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are confluent bilateral parenchymal opacities with a lower lobe predominance . The cardiomediastinal silhouette is within normal limits for technique . No displaced fractures identified .
    OUTPUT:
    
Diffuse bilateral parenchymal opacities with a lower lobe distribution . Findings may represent bilateral infection , edema or ARDS .