Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate hyperexpansion of the lungs with relative flattening of the hemidiaphragms , consistent with COPD . The hila are prominent . The cardiomediastinal silhouette is not enlarged . Patchy opacity at left lung base is consistent with atelectasis . No frank consolidation concerning for pneumonia is identified . There is no pleural effusion , pneumothorax , or overt pulmonary edema .
    OUTPUT:
    
Left basilar atelectasis . No frank consolidatino to suggest pneumonia . Emphysema .