Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Vague opacity in the right lower lung , likely atelectasis and bronchovascular crowding . No convincing signs of pneumonia . No pleural effusion or pneumothorax . Cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
Vague opacity in the right lower lung likely represents atelectasis and bronchovascular crowding .