Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . The aorta is tortuous and calcified . There is no pleural effusion or pneumothorax . A lucency projecting over the lateral mid to lower right chest suggests a skinfold or object lying outside of the patient . The lungs appear clear .
    OUTPUT:
    
No evidence of acute disease .