Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Aorta is mildly unfolded . Mediastinal and hilar contours are otherwise unremarkable . The pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .