Mercedes-Benz sign

Star-shaped pattern of gas-fissuring within gallstones.

Mercedes-Benz sign

Sign occurs due to the gas fissuring within the gallstone.

  1. Fissures – usually fluid-filled,
  2. Present in 50% of gallstones.
  3. Less than half of these fissured gallstones contain some amount of nitrogen gas

Radiolucency caused by the gas usually appears in a triradiate pattern, reminiscent of the Mercedes-Benz logo

Crow’s foot and star‐shaped

Crow’s foot and star‐shaped were previously used to describe fissured gallstones. However, they were replaced by the Mercedes-Benz sign

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