Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta remains tortuous . Mediastinal and hilar contours are within normal limits . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Pulmonary vasculature is normal . Moderate degenerative changes are noted within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .