Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffusely increased interstitial markings , right overall greater than left , are overall stable as compared to the prior study . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . No findings to suggest pneumothorax are seen . Degenerative changes at the right shoulder are again noted but not well assessed .
    OUTPUT:
    
No significant interval change . Stable appearing chronic fibrotic changes .