Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal and hilar contours are unremarkable . No pneumomediastinum . There is no pleural effusion or pneumothorax . No osseous abnormalities are identified . No radiopaque foreign object is seen in the chest .
    OUTPUT:
    
Unremarkable chest radiographic examination .