Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits and unchanged from prior exam . Lucent lungs as well as flattening of the hemidiaphragms are compatible with severe emphysema . A subtle opacity exists at the right cardiophrenic angle but no correlate on the lateral view is present . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Severe emphysema ; right cardiophrenic angle opacity equivocal for pneumonia . Findings discussed with ___ at 15 :40 on ___ by ___ over the phone .