Telltale triangle sign

The telltale triangle sign, also known as the triangle sign or telltale triangle, is a radiographic sign seen on plain abdominal radiographs in a supine, cross table lateral or decubitus view that signifies presence of pneumoperitoneum, of any cause 1,2.

It describes the appearance of a radiolucent triangle of gas formed between three loops of bowel or between two loops of bowel and the abdominal wall 1.

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Article information

rID: 59237
Section: Signs
Tag: stub, cases
Synonyms or Alternate Spellings:
  • Triangle sign
  • Telltale traingle

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