Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged but unchanged . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Hyperinflation of the lungs with bullous emphysematous changes are again noted in the upper lobes . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Pulmonary vasculature is normal . Right - sided rib cage deformities are chronic . Partially visualized is cervical spinal fusion hardware .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Bullous emphysema .