Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . The heart size is top normal . The mediastinal contour is likely within normal limits accounting for low lung volumes . There is no hilar enlargement . The pleura vascularity is normal . No focal consolidation , pleural effusion or pneumothorax is definitively noted . There are multilevel degenerative changes in the thoracic spine with anterior bridging osteophytes .
    OUTPUT:
    
No acute cardiopulmonary abnormality .