Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear and well expanded without focal opacities , pleural effusion or pneumothorax . The cardiac and mediastinal contours are normal . A metallic density that projects over the manubrium is unchanged . Elevation of the right hemidiaphragm is unchanged compared to multiple prior radiographs .
    OUTPUT:
    
No acute cardiopulmonary process .