Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right basilar atelectasis is minimal . There is no consolidation , edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Mild hyperinflation and flattening of the hemidiaphragms suggest underlying COPD .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . COPD .