Bifid rib

Case contributed by Frank Gaillard

Patient Data

Gender: Male

Incidental left 6th bifid rib.

Case Discussion

Bifid or forked ribs are uncommon. They are thought to occur in ~0.2% of the population.

Usually asymptomatic, they may cause musculoskeletal pain or intercostal nerve entrapment. If of the first rib, then they may be an uncommon cause of thoracic outlet syndrome.

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