Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There still diffuse increase in interstitial markings bilaterally consistent with chronic interstitial lung disease . No new focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are grossly stable .
    OUTPUT:
    
No significant interval change . Stable diffuse increase in interstitial markings consistent with chronic lung disease .