Mercedes-Benz sign (gallbladder)
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In the gallbladder, the Mercedes-Benz sign describes a star-shaped pattern of gas-fissuring within gallstones initially described on an abdominal radiograph 2.
Fissures, usually fluid-filled, are present in close to 50% of gallstones. Less than half of these fissured gallstones contain some amount of nitrogen gas 1. The radiolucency caused by the gas usually appears in a triradiate pattern, mimicking the Mercedes-Benz logo.
Terminology
The terms crow's foot and star‐shaped were previously used to describe fissured gallstones. However, they were replaced by the Mercedes-Benz sign 4.
History
In 1796 Friedrich August Walter described stellate fissuring of gallstones in vitro but it was identified in an abdominal x‐ray by Breuer until 1931 4.
-<p>In the gallbladder, the <strong>Mercedes-Benz sign</strong> describes a star-shaped pattern of gas-fissuring within gallstones initially described on an abdominal radiograph <sup>2</sup>.</p><p>Fissures, usually fluid-filled, are present in close to 50% of gallstones. Less than half of these fissured gallstones contain some amount of gas <sup>1</sup>. The radiolucency caused by the gas usually appears in a triradiate pattern, mimicking the Mercedes-Benz logo.</p><h4>Terminology</h4><p>The terms crow's foot and star‐shaped were previously used to describe fissured gallstones. However, they were replaced by the Mercedes-Benz sign <sup>4</sup>. </p><h4>History</h4><p>In 1796<strong> Friedrich August Walter</strong> described stellate fissuring of gallstones in vitro but it was identified in an abdominal x‐ray by <strong>Breuer </strong>until 1931 <sup>4</sup>. </p><p> </p>- +<p>In the gallbladder, the <strong>Mercedes-Benz sign</strong> describes a star-shaped pattern of gas-fissuring within gallstones initially described on an abdominal radiograph <sup>2</sup>.</p><p>Fissures, usually fluid-filled, are present in close to 50% of gallstones. Less than half of these fissured gallstones contain some amount of nitrogen gas <sup>1</sup>. The radiolucency caused by the gas usually appears in a triradiate pattern, mimicking the Mercedes-Benz logo.</p><h4>Terminology</h4><p>The terms crow's foot and star‐shaped were previously used to describe fissured gallstones. However, they were replaced by the Mercedes-Benz sign <sup>4</sup>. </p><h4>History</h4><p>In 1796<strong> Friedrich August Walter</strong> described stellate fissuring of gallstones in vitro but it was identified in an abdominal x‐ray by <strong>Breuer </strong>until 1931 <sup>4</sup>. </p><p> </p>
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