Congenital Abnormality
cervical rib
cer·vi·cal rib
Subclass of:
Bone structure of rib
Definitions related to cervical rib:
  • A supernumerary rib developing from an abnormal enlargement of the costal element of the C7 vertebra. This anomaly is found in 1-2% of the population and can put pressure on adjacent structures causing CERVICAL RIB SYNDROME; THORACIC OUTLET SYNDROME; or other conditions.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Presence of rib formation in the cervical region.
    NCI
    U.S. National Cancer Institute, 2021
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