CTICasesPosterior Sternoclavicular Joint Dislocation (Left)
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Imaging findings
Trauma chest radiograph shows lack of symmetry of the medial portions of the clavicles, with the left clavicle head appearing abnormal relative to the right. A companion case (anterior dislocation) is used for comparison. Corresponding CT confirms a posterior dislocation of the left sternoclavicular joint, where the clavicle is seen posterior to the manubrium.
Key takeaways
When evaluating trauma chest radiographs, pay close attention to the symmetry of the medial clavicles. Dislocation of the sternoclavicular joint can be anterior or posterior. Posterior dislocations can be more concerning due to potential impingement on mediastinal structures.
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