Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal and the lungs are clear . No pleural effusion or pneumothorax is demonstrated . Clips are noted within the right breast about a 7 mm nodular opacity , which appears to correlate with post treatment changes on the prior mammogram . Mild degenerative changes are seen within the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .