Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest wall pacer lead ends in the left ventricle , unchanged in position . There is no pneumothorax or pleural effusion . Stable mild cardiomegaly . Mediastinal contour is normal . Emphysema is moderate . There is chronic left volume loss with mediastinal shift . There is chronic linear is versus scarring in the left lung . No focal consolidation .
    OUTPUT:
    
No interval change in the appearance of the chest . Specifically , stable position of right ventricular lead since prior .