Definition
A supernumerary rib articulating with a cervical
vertebra, usually the seventh, but not reaching the sternum
anteriorly. |
Radiographic Appearance
AP radiograph of the cervical spine: Elongated
transversal process of the 7th cervical vertebra either unilateral
or bilateral.
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Pathology
Thoracic outlet syndrome
Clinically presents with a combination of ulnar and
median-innervated muscle weakness.
The thoracic outlet is the area of the shoulder/neck where the
nerves (brachial plexus) and blood vessels (subclavian vessels) pass
from the cervical area toward the axilla. Thoracic outlet syndrome (TOS)
is a set of symptoms due to compression and/or irritation of these
vessels and nerves. There is much controversy among physicians and
diagnosing this syndrome is very difficult. It is often confused
with carpal tunnel syndrome, brachial plexus syndrome, rotator cuff
syndrome and bursitis. |
Treatment:
Decompression by surgical intervention is generaly effective if the
patient presents with thoracic outlet syndrome
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Image 1
Unilateral Cervical Rib Radiograph
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Useful Link:
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