Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs remain hyperinflated , flattening of the diaphragms , consistent with COPD . Left base atelectasis / scarring is seen . There is no definite focal consolidation . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable and unremarkable .
    OUTPUT:
    
No significant interval change .