Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . The aorta is moderately calcified and tortuous , as before . The heart is normal in size . There is no definite pleural effusion or pneumothorax . The lungs appear clear . Surgical clips project over the right upper quadrant of the abdomen .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .