Costoclavicular space

The costoclavicular space is the anterior portion of the superior thoracic aperture, between the clavicle and first rib. The subclavian vessels and brachial plexus pass though the space related to the scalene muscles. Proximally, the plexus passes through the scalene triangle, and distally through the subcoracoid space.

Its borders are:​

Related pathology

The costoclavicular space narrows when the arm abducts 4 which explains its association with thoracic outlet syndrome

Anatomy: Thoracic


Article information

rID: 47507
System: Chest, Vascular
Section: Anatomy
Synonyms or Alternate Spellings:
  • Costo-clavicular space

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