Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size and mediastinal contours are within normal limits . Aortic atherosclerotic calcifications are noted . A couple of calcified non-enlarged left hilar lymph nodes may be present ( versus vessels seen on end ) . There is no evidence of pneumothorax or pleural effusion . No focal pulmonary parenchymal consolidation . Osseous structures show degenerative changes of thoracic spine and acromioclavicular joint on the right .
    OUTPUT:
    
No acute cardiopulmonary abnormality .