Bifid rib
Last revised by Yuranga Weerakkody ◉ on 17 Jun 2022
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Weerakkody Y, Niknejad M, et al. Bifid rib. Reference article, Radiopaedia.org (Accessed on 29 Sep 2023) https://doi.org/10.53347/rID-990
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rID:
990
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Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosuresLast revised:
17 Jun 2022, Yuranga Weerakkody ◉
Disclosures:
At the time the article was last revised Yuranga Weerakkody had no financial relationships to ineligible companies to disclose.
View Yuranga Weerakkody's current disclosuresRevisions:
32 times, by 14 contributors - see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Forked rib
- Bifid ribs
- Forked ribs
- Bifurcated rib
- Bifurcated ribs
A bifid or forked or bifurcated rib is a congenital skeletal abnormality of the rib cage with the cleaved sternal end into two. They are thought to occur in ~0.2% of the population and there may be a female as well as right-sided predilection 2.
Epidemiology
Associations
Bifid ribs can be seen in Gorlin (nevoid basal cell carcinoma) syndrome.
Forked ribs can also be seen with truncus arteriosus and tetralogy of Fallot.
Clinical presentation
Usually asymptomatic, they may cause musculoskeletal pain or intercostal nerve entrapment. A bifid first rib can be an uncommon cause of thoracic outlet syndrome.
References
- 1. Cağli K, Ozçakar L, Beyazit M et-al. Thoracic outlet syndrome in an adolescent with bilateral bifid ribs. Clin Anat. 2006;19 (6): 558-60. doi:10.1002/ca.20280 - Pubmed citation
- 2. Kurihara Y, Yakushiji YK, Matsumoto J et-al. The ribs: anatomic and radiologic considerations. Radiographics. 19 (1): 105-19. Radiographics (full text) - Pubmed citation
- 3. Andrea A, Tardieu G, Fisahn C, Iwanaga J, Oskouian R, Tubbs R. Bifid Ribs: A Comprehensive Review. Anatomy. 2016;10(3):221-7. doi:10.2399/ana.16.034
- 4. Kryger M, Kosiak W, Batko T. Bifid Rib - Usefulness of Chest Ultrasound. A Case Report. J Ultrason. 2013;13(55):446-50. doi:10.15557/JoU.2013.0048 - Pubmed
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