Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The aorta remains tortuous but unchanged . The mediastinal and hilar contours are normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There is no pulmonary vascular congestion . No acute osseous abnormalities are present .
    OUTPUT:
    
No acute cardiopulmonary process .