CTICasesAnterior Dislocation of the Sternoclavicular Joint
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Imaging findings
Chest radiograph, initially read as showing only a possible small apical cap or extrapleural fluid. CT topogram and volume-rendered images reveal asymmetry of the clavicles, with anterior dislocation at the right sternoclavicular joint. Associated findings include considerable bruising in the chest wall and possibly bleeding into the mediastinum behind the sternum.
Key takeaways
Anterior sternoclavicular joint dislocation can be a subtle finding on plain radiographs, especially in trauma patients. CT is definitive for diagnosis. Associated findings like mediastinal hemorrhage or muscle injury (e.g., pectoralis) should be evaluated.
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