Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral radiographs of the chest demonstrate intact median sternotomy wires and left - sided clips . The lungs are clear , and the cardiac and mediastinal contours are normal . No pleural effusion or pneumothorax is seen . The osseous structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .