Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Relatively low lung volumes noted on the current exam with secondary crowding of the bronchovascular markings . Left chest wall pacing device is again noted . Mediastinal clips , mediastinal wires transitional pericardial densities in process . The lungs are grossly clear
    OUTPUT:
    
No definite acute cardiopulmonary process .