Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment of the cardiac silhouette size is difficult given the presence of a moderate size right pleural effusion , new in the interval , and a small left pleural effusion . Bibasilar airspace opacities may reflect atelectasis , but infection is not excluded . The mediastinal and hilar contours are relatively similar . There appears to be mild pulmonary vascular congestion . No pneumothorax is identified . Multilevel mild to moderate degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
New bilateral pleural effusions , moderate on the right and small on the left , with bibasilar airspace opacities potentially reflecting compressive atelectasis , but infection is not excluded . Possible mild pulmonary vascular congestion .