Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . A linear opacity tracking diagonally across the right lower lobe likely represents atelectasis . No other focal opacities are seen . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Implanted loop recorder in the left chest is in stable position . Surgical clips at the level of the GE junction in the mediastinum are re-demonstrated .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .