Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear unchanged . There is no pleural effusion or pneumothorax . There is at least one very small calcified nodule in the right lower lung consistent with a granuloma and not significantly changed . Otherwise , the lungs appear clear . Cholecystectomy clips project over the right upper quadrant . Bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute disease .