Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . A subtle opacity at the right lung base may represent overlying soft tissue . There is no pneumothorax , fracture or dislocation . Bilateral cervical ribs are noted . Limited assessment of the abdomen is unremarkable .
    OUTPUT:
    
A subtle opacity at the right lung base may represent overlying soft tissue . Oblique radiographs may be useful for further evaluation .