Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right Port - A - Cath terminates at the cavoatrial junction , unchanged . Persistent low lung volumes and chronic interstitial abnormality with emphysematous component appear stable . Mediastinal contours , hila , and cardiac borders are normal . No pleural effusion .
    OUTPUT:
    
Chronic interstitial disease and emphysema without evidence of new focal consolidation to suggest the presence of pneumonia .