Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta remains tortuous but unchanged . Mediastinal and hilar contours are unchanged with a small hiatal hernia again noted . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . Minimal retrocardiac opacity likely reflects atelectasis . There are hypertrophic changes again seen throughout the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .