Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph demonstrates unremarkable cardiomediastinal and hilar contours . No focal opacification concerning for pneumonia identified . New 2 cm opacification projecting over the right upper lung adjacent to an overlying lead does not appear anatomic and is likely a lead clip , which could be confirmed with oblique views . Finding was not seen on subsequent radiograph after central line placement . No pleural effusion or pneumothorax evident .
    OUTPUT:
    
No acute cardiopulmonary process . Opacification projecting over the right upper lung is most consistent with lead clip .