Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . There is mildly prominent inferior opacification below the right hilum , more than usually expected and which would be compatible with atelectasis although pneumonia is not excluded . The bony structures are unremarkable .
    OUTPUT:
    
Patchy right infrahilar opacity , probably within the right lower lobe , and not specific ; it could be seen with atelectasis although mild bronchopneumonia is not excluded in the appropriate setting .