Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unchanged . The ascending aortic contour remains ectatic , better seen previous CT . Pulmonary vasculature is not engorged . Lungs are hyperinflated without focal consolidation . No pleural effusion or pneumothorax is present . Mild degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .