Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views the chest . The cardiomediastinal and hilar contours are normal . Minimal elevation of left hemidiaphragm is again seen . There is no pleural effusion or pneumothorax . Lungs are hyperinflated with flattened hemidiaphragms with prominent retrosternal airspace , consistent with COPD . There is no focal consolidation concerning for pneumonia . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
No acute cardiopulmonary process .