Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A few calcified granulomas are again seen in the right lower lung . Patchy right lower lobe opacity could be due to atelectasis , less likely pneumonia No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable unremarkable .
    OUTPUT:
    
Subtle patchy right lower lobe opacity could be due to atelectasis versus less likely pneumonia .