Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . The lungs are clear ; specifically , the previously described left lower lobe consolidation is resolved . There is no pleural effusion or pneumothorax . The bones demonstrate mild - to - moderate degenerative changes of the thoracic spine .
    OUTPUT:
    
Resolution of pneumonia .