Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are unchanged and unremarkable with the heart size within normal limits . Pulmonary vasculature is normal . Minimal atelectasis is noted in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . Multiple clips and a CBD stent are noted within the right upper quadrant of the abdomen . There are mild degenerative changes seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .