Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is mildly enlarged , unchanged . The aortic knob is calcified . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vascularity is normal . There is minimal atelectasis in the left lower lobe . No focal consolidation , pleural effusion or pneumothorax is present . Anterior flowing osteophytes are noted in the thoracic spine compatible with DISH .
    OUTPUT:
    
No acute cardiopulmonary abnormality .