Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is not engorged . Mild upper lobe predominant emphysematous changes are again noted . No focal consolidation , pleural effusion or pneumothorax is identified . Known nodule in the right middle lobe is better demonstrated on previous CT . Multiple clips are visualized within the right axilla as well as projecting over the lower right back . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .