Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated , with flattening of the diaphragms and increased AP diameter , similar to prior . There is no focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . There are degenerative changes in the thoracic spine .
    OUTPUT:
    
No pneumonia . COPD