Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , I doubt significant interval change . A right - sided PICC line tip is again seen overlying the mid / lower SVC . Subtle patchy opacities are again seen at the lung bases . No progressive confluence or new focal opacity is identified . The cardiomediastinal silhouette is unchanged . Again seen is upper zone redistribution without overt CHF or gross effusion .
    OUTPUT:
    
No significant interval change detected .