Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . The mediastinal and hilar contours are unchanged . Lungs appear hyperinflated with flattening of the diaphragms . No focal consolidation , pleural effusion or pneumothorax is seen . The pulmonary vasculature is normal . There are mild multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .