Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . The cardiac silhouette size is normal . The aorta demonstrates diffuse atherosclerotic calcifications . Mild pulmonary vascular congestion is demonstrated , as well as patchy opacities in the lung bases that could reflect atelectasis . Infection however is not excluded . Small bilateral pleural effusions are demonstrated . There is no pneumothorax . Marked degenerative changes of the right glenohumeral joint are noted . Moderate degenerative changes within the thoracic spine are also seen .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions . Bibasilar patchy opacities could reflect atelectasis but infection is not excluded .