Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright radiograph of the chest . The lungs are hyperinflated but clear . The hilar and cardiomediastinal contours are normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Hyperinflation of lungs , suggestive of COPD .