Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is top normal . The mediastinal and hilar contours are unchanged . The pulmonary vasculature is normal . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is seen . Multiple clips are demonstrated within the left upper quadrant posteriorly . No acute osseous abnormalities are detected . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .