Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Lungs are clear . Previously noted pulmonary nodules on CT are not clearly visualized on the current radiograph . The pulmonary vasculature is normal . No pleural effusion or pneumothorax is visualized . No acute osseous abnormality is seen . No subdiaphragmatic free air is noted .
    OUTPUT:
    
No acute cardiopulmonary process .