Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is mildly tortuous , but unchanged . Mediastinal and hilar contours are stable . Pulmonary vascularity is normal . No focal consolidation , pleural effusion or pneumothorax is present . There are multilevel degenerative changes in the thoracic spine with anterior osteophytes and endplate irregularity .
    OUTPUT:
    
No acute cardiopulmonary abnormality .