Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild hyperexpansion is compatible with COPD . There is no suspicious mass , focal consolidation , pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
1 . No evidence of intrathoracic malignancy . 2 . Mild hyperexpansion compatible with COPD .