Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Minimal bibasilar atelectasis is demonstrated without focal consolidation . No pleural effusion or pneumothorax is present . Spinal fixation hardware is again noted along with evidence of prior spinal artery embolization . Degenerative changes are seen involving the acromioclavicular and glenohumeral joints bilaterally . Known left - sided chest wall mass with destruction of the left sixth anterior rib is better assessed on the recent CT .
    OUTPUT:
    
No acute cardiopulmonary abnormality .