Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest wall single lead pacing device is unchanged in appearance compared to the prior study . The thoracic aorta demonstrates moderate unfolding . This accounts for at least some of the widening of the mediastinum . This is also likely exaggerated by the technique . No consolidation seen . No pneumothorax or pleural effusion . Elevation of the right hemidiaphragm is unchanged compared to the prior study .
    OUTPUT:
    
Technically limited study . No acute cardiopulmonary process seen .