<prompt> Mercedes Benz sign is seen in:Gall stoneBladder stoneRenal stonesForeign body bronchus  <response>: ANSWER: A Gall stoneREF: Suttons textbook of radiology, 7th edition, volume 1 page 713 Mercedes Benz signSeagull signCrow feet sign:Gall bladder stone if radiopaque has a stellate faceted appearance with gas containing fissures on the plain radiograph and is called as Mercedes Benz signSeagull sign or Crowr feet sign 