Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: This examination is limited due to underpenetration likely owing to patient 's body habitus . Allowing for this limitation , the lungs are well expanded , without focal opacities . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Scattered areas of pleural thickening are due to extrapleural fat , not clinically significant .
    OUTPUT:
    
Normal chest radiographic examination .