Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is normal . The mediastinal and hilar contours are within normal limits . There is crowding of the bronchovascular structures . Minimal streaky opacities in the lung bases likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine with anterior bridging osteophytes .
    OUTPUT:
    
Low lung volumes . No radiographic evidence for cardiomegaly or pneumonia .