Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta is tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vascularity is normal . Previously noted right upper lobe peripheral opacification has resolved . No new focal consolidation , pleural effusion or pneumothorax is seen . No acute osseous abnormalities are detected . There are mild degenerative changes throughout the thoracic spine . No subdiaphragmatic free air is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No free air under the diaphragms .