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