Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate enlargement of the cardiac silhouette is unchanged . The aorta remains tortuous . Hilar contours are similar . There is crowding of bronchovascular structures due to low lung volumes with mild pulmonary vascular congestion . Patchy opacities in the lung bases likely reflect atelectasis . Trace bilateral pleural effusions are noted on the lateral view . No focal consolidation or pneumothorax is present . Marked degenerative changes are noted involving the right glenohumeral joint with superior subluxation of the right humeral head , unchanged
    OUTPUT:
    
Low lung volumes with mild pulmonary vascular congestion , mild bibasilar atelectasis and trace bilateral pleural effusions .