Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are extremely low . There is resultant mild widening of the cardiomediastinal silhouette . No consolidation , pulmonary edema , pleural effusion , or pneumothorax is detected . A left chest wall AICD device is seen with a lead in the expected position of the right ventricle . Previously noted pulmonary arterial enlargement , is less well seen in the current study . There is no intra-abdominal free air .
    OUTPUT:
    
No pneumoperitoneum or acute cardiopulmonary pathology .