Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the chest radiograph obtained ___ , no significant changes are appreciated . Lung volumes are large , but unchanged and without flattening of the diaphragms , probably not pathologic . Heart size is normal . Cardiomediastinal and hilar silhouettes and pleural surfaces are normal . Healed left eighth rib fracture is unchanged .
    OUTPUT:
    
No radiographic evidence of significant cardiopulmonary abnormality . Persistently arge lung volumes may not reflect overinflation .