Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . Fullness along the expected course of the lower esophagus is probably due to varices and appears unchanged . The lungs appear clear . The lung volumes are low . There is no pleural effusion or pneumothorax . Bony structures appear within normal limits .
    OUTPUT:
    
No evidence of acute disease .