Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided pacer / defibrillator with 2 leads , and a right internal jugular Swan - ___ catheter are unchanged in position . The heart is significantly enlarged but stable in size . The cardiomediastinal contour is within normal limits and stable . The lungs are clear . There is no pneumothorax .
    OUTPUT:
    
No evidence of edema . Stable cardiomegaly . No significant change from ___ .