Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are normal . Diffuse , chronic interstitial lung changes are seen throughout the lungs bilaterally , overall similar to the prior exam . No focal consolidations concerning for pneumonia are identified . Multiple vertebroplasty changes are again seen in the lower thoracic / upper lumbar spine . Multiple thoracic compression deformities are unchanged compared to the prior exam .
    OUTPUT:
    
No focal consolidations concerning for pneumonia identified . Stable chronic interstitial lung disease bilaterally .