Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mild to moderately enlarged . The aorta remains tortuous . Mild pulmonary vascular congestion is demonstrated . Lungs are hyperinflated with patchy opacities in the lung bases , likely atelectasis . No large pleural effusion or pneumothorax is present . Mild degenerative changes are seen within the right shoulder and imaged thoracolumbar spine .
    OUTPUT:
    
Mild pulmonary vascular congestion and bibasilar atelectasis .