Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal in the lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities demonstrated . Moderate degenerative changes with osteophytes are seen in the thoracic spine . Deformity of the left superolateral rib cage appears chronic .
    OUTPUT:
    
No acute cardiopulmonary abnormality .