Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is re - demonstrated . The mediastinal contour is unremarkable . There is mild pulmonary edema with upper zone vascular redistribution . Small bilateral pleural effusions are noted . No pneumothorax is present . There are mild degenerative changes in the thoracic spine . No acute osseous abnormality is visualized .
    OUTPUT:
    
Mild pulmonary edema and small bilateral pleural effusions .