Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Are right internal jugular approach Swan - Ganz catheter terminates within the right main pulmonary artery and could be pulled back 4 - 5 cm for ideal positioning . A left - sided pacer and single lead are in unchanged position . Heart size is normal . The cardiomediastinal and hilar contours are within normal limits . The lungs are clear without effusion , consolidation or pneumothorax .
    OUTPUT:
    
Swan - Ganz catheter terminates within the right main pulmonary artery and could be pulled back 4 - 5 cm for ideal positioning .