Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and show bilateral interstitial and focal airspace opacities . There is a small left - sided pleural effusion . The cardiac silhouette is top normal . The mediastinal silhouette and hilar contours are normal . A left - sided pacemaker terminates with its leads in the right atrium and right ventricle appropriately .
    OUTPUT:
    
Mild pulmonary edema with a small left pleural effusion .