Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . The lungs are mildly hyperinflated , consistent with mild COPD . There are stable calcifications of the aortic arch and costochondral cartilage .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Mild hyperinflation reflects mild COPD .