Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The aorta is tortuous and demonstrates mild atherosclerotic calcifications . Mediastinal and hilar contours are otherwise unremarkable . The pulmonary vasculature is normal . Minimal subsegmental atelectasis is noted in the lung bases . No focal consolidation , pleural effusion or pneumothorax is present . Multilevel degenerative changes are noted in the thoracic spine . Marked degenerative changes are also seen involving both acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary abnormality .