Leaping dolphin sign

Last revised by Yuranga Weerakkody on 3 Jun 2019

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.

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