Sternoclavicular joint dislocation
History of a sports injury and pain in the upper left half of the chest.
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Axial CT showing left sternoclavicular joint incongruence with posterior dislocation of the clavicle.
The dislocated segment of left clavicle is indenting the left brachiocephalic vein.
There is also a medial epiphyseal fracture of left clavicle with bone fragments.
Posterior sternoclavicular dislocation is a rare traumatic injury that presents a potential risk of injury to mediastinal vascular structures.
The diagnosis is clinical, but x-ray and CT are crucial for better characterization of the injury.