Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe enlargement of the cardiac silhouette is present . The aorta is slightly tortuous . There is mild pulmonary edema with small bilateral pleural effusions . More focal opacities seen within the lung bases could reflect areas of atelectasis . No pneumothorax is identified . There are mild degenerative changes seen in the thoracic spine .
    OUTPUT:
    
Mild congestive heart failure with mild pulmonary edema and small bilateral pleural effusions . Probable bibasilar atelectasis .