Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate moderate enlargement of the cardiac silhouette , unchanged from prior . Aortic tortuosity is also unchanged . Bibasilar atelectasis is present . No pulmonary edema . No focal consolidation or pneumothorax . Small bilateral pleural effusions are noted . Multilevel degenerative changes of the thoracic spine have progressed compared to the prior study .
    OUTPUT:
    
No evidence of pneumonia . Stable cardiomegaly with small bilateral pleural effusions .