Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lungs are hyperinflated . There is increased opacity in the left lower lobe which is concerning for pneumonia . No large effusion or pneumothorax . Cardiomediastinal silhouette is stable . Sclerotic appearance of the spine likely reflects known metastatic disease .
    OUTPUT:
    
Left lower lobe pneumonia . Emphysema . Bony metastatic disease .