Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of the cardiac silhouette is on change from the prior study . Mediastinal contour appears similar . There is mild central pulmonary vascular congestion , likely accentuated by lower lung volumes than on the prior study . Small bilateral pleural effusions , larger on the left , are not substantially changed in size from the previous radiograph . Patchy opacities in the lung bases may reflect areas of atelectasis but infection or aspiration can not be excluded . There is no pneumothorax . Moderate degenerative changes in the thoracic spine are re - demonstrated .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions , larger on the left , not substantially changed in size from the previous radiograph . Bibasilar patchy opacities may reflect atelectasis , though infection or aspiration can not be completely excluded .