Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . This accentuates the cardiac silhouette size which is likely mildly enlarged . The mediastinal and hilar contours are unremarkable . There is crowding of the bronchovascular structures , with likely mild pulmonary vascular congestion but no overt pulmonary edema . No focal consolidation , pleural effusion or pneumothorax is present . Mild bibasilar atelectasis is noted . There are multilevel degenerative changes in the thoracic spine . Partially imaged is a left humeral head prosthesis .
    OUTPUT:
    
Low lung volumes with possible mild pulmonary vascular congestion but no overt pulmonary edema .