Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Subtle opacities are seen at the lung bases bilaterally . There is no pneumothorax , fracture or dislocation . Limited assessment of the abdomen is unremarkable .
    OUTPUT:
    
Subtle bibasilar opacities are suggestive of possible aspiration .