Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and hyperinflated lungs which are consistent with COPD and unchanged from prior radiograph . Opacity in the left base likely represents atelectasis or minimal scarring , and is unchanged . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Unchanged hyperinflated lungs and minimal left base atelectasis or scarring . A preliminary read was provided via telephone by Dr . ___ to the office of Dr . ___ . A message was left with ___ at ___ on ___ .