Falciform ligament sign

The falciform ligament sign (also called the Silver's sign) is a sign seen with a pneumoperitoneum.

It is almost never seen in isolation. If there is enough free air to outline the falciform ligament, there is usually enough air to also provide at least a Rigler's sign. 

The falciform ligament connects the anterior abdominal wall to the liver. The ligament continues to extend inferiorly beyond the liver where it becomes the round ligament (white arrow). Given that the falciform ligament is situated against the anterior abdominal wall, it is not surprising that it becomes outlined with air in a supine patient with free abdominal gas.

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Article information

rID: 19615
Section: Signs
Tags: stub, refs, cases
Synonyms or Alternate Spellings:
  • Silvers sign

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