Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Distal portion of the right internal jugular venous catheter is somewhat obscured by the pacer leads , however probably terminates in low SVC . There is no pneumothorax or large pleural effusion . Right lung base opacity is persistent . There is slightly increased mild left lung base opacity . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
1 . Distal portion of the right internal jugular venous catheter is somewhat obscured by the pacer leads , however probably terminates in low SVC . 2 . Right lung base opacity is persistent and consistent with aspiration and / or pneumonia . Left lung base opacity is slightly increased and may reflect small aspiration .