Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mildly hyperinflated clear lungs without pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are normal . No bony abnormality .
    OUTPUT:
    
Normal chest radiographs . No rib fractures ; however , if clinical concern , consider dedicated rib series with focal marker at sight of pain .