Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the left PICC line is again noted to project over the mid SVC . Surgical clips are again noted in the right upper quadrant . In the diffuse bilateral interstitial markings . No focal consolidation , pleural effusion or pneumothorax is identified . The size and appearance of the cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
The tip of the left PICC line is unchanged , projecting over the mid SVC . Interval decrease in extent of the diffuse bilateral interstitial opacities .