Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta is mildly tortuous but unchanged . The mediastinal and hilar contours are stable , with some fullness of the right hilus again redemonstrated . There is no pulmonary vascular congestion . The lungs are clear . No pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .