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Cervical rib

Dr Mostafa El-Feky and Radswiki et al.

Cervical ribs are supernumerary or accessory ribs arising from the seventh cervical vertebra. They occur in ~0.5% of the population, are usually bilateral, but often asymmetric 2, and are more common in females.

Related pathology

Although cervical ribs are usually asymptomatic, they are the most important anatomic rib variant clinically, because they can cause thoracic outlet syndrome by compression of the brachial plexus or subclavian artery/vein.

Differential diagnosis

Anatomy: Spine
Anatomy: Thoracic

Thorax

Article information

rID: 12099
Section: Anatomy
Synonyms or Alternate Spellings:
  • Cervical ribs

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Cases and figures

  • Case 1
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  • Case 2
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  • Case 3
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  • Case 4: rudimentary asymmetric cervical ribs
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  • Case 5
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  • Case 6
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  • Case 7: bilateral
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  • Case 8: bilateral on multiplanar CT
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  • Case 9
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  • Case 10
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  • Case 11: on left
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  • Case 12
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  • Case 13: bilateral
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