Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are unchanged , with a heart size within normal limits . The aorta is mildly tortuous . The pulmonary vascularity is normal and the lungs are clear . No pleural effusion , focal consolidation , or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary process .