Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A small clip projects over the right upper lung . Lungs are hyperinflated and lucent related to underlying severe emphysema . No focal consolidation , large effusion or pneumothorax . Cardiomediastinal silhouette appears stable and normal . Chronic left ribcage deformities noted .
    OUTPUT:
    
Severe emphysema without superimposed acute process .