Leaping dolphin sign

The leaping dolphin sign (also known as the diaphragm muscle slip sign) may be seen in pneumoperitoneum on a supine abdominal radiograph. It represents the outlining of the diaphragmatic muscle slips by free intraperitoneal gas and usually requires a moderate to large volume of pneumoperitoneum 1-4.

History and etymology

It was first described by Cho and Baker in 1997 1.

Inspired signs

Article information

rID: 68458
Section: Signs
Synonyms or Alternate Spellings:
  • Dolphin sign
  • Diaphragm muscles slip sign
  • Diaphragmatic muscles slip sign
  • Diaphragmatic muscle slip sign
  • Diaphragm muscle slip sign
  • Leaping dolphins sign

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: photograph - leaping dolphins
    Drag here to reorder.
  • Case 1
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.