Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There has been no significant interval change since the prior study . Again , there are relatively low lung volumes and mild elevation of the right hemidiaphragm . The cardiac and mediastinal silhouettes are unremarkable . Interstitial opacities in the mid - to - lower lung fields are stable consistent with known interstitial lung disease .
    OUTPUT:
    
No significant interval change .