Leaping dolphin sign
Citation, DOI, disclosures and article data
Citation:
Bell D, Weerakkody Y, Leaping dolphin sign. Reference article, Radiopaedia.org (Accessed on 18 Jan 2025) https://doi.org/10.53347/rID-68458
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rID:
68458
Article created:
Disclosures:
At the time the article was created Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Revisions:
2 times, by
2 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Leaping dolphins sign
- Diaphragm muscle slip sign
- Diaphragmatic muscle slip sign
- Diaphragmatic muscles slip sign
- Diaphragm muscles slip sign
- 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.
References
- 1. Dyer RB, DiSantis DJ. The leaping dolphin sign. (2017) Abdominal radiology (New York). 42 (2): 665-666. doi:10.1007/s00261-016-0896-3 - Pubmed
- 2. Cho KC, Baker SR. Depiction of diaphragmatic muscle slips on supine plain radiographs: a sign of pneumoperitoneum. (1997) Radiology. 203 (2): 431-3. doi:10.1148/radiology.203.2.9114100 - Pubmed
- 3. Xiang H, Han J, Ridley WE, Ridley LJ. Leaping dolphin sign: Pneumoperitoneum. (2018) Journal of medical imaging and radiation oncology. 62 Suppl 1: 87. doi:10.1111/1754-9485.34_12784 - Pubmed
- 4. Pinto A, Miele V, Schillirò ML, Nasuto M, Chiaese V, Romano L, Guglielmi G. Spectrum of Signs of Pneumoperitoneum. (2016) Seminars in ultrasound, CT, and MR. 37 (1): 3-9. doi:10.1053/j.sult.2015.10.008 - Pubmed
- 5. Pneumoperitoneum and the plain film: the need to see all of the abdomen. (2018) Emergency Radiology. 7 (5): 298. doi:10.1007/PL00011845 - Pubmed
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