Tuberculous osteomyelitis/arthritis of the first costo-clavicular joint and sternum

Figure 1 Lateral chest X-ray demonstrates anterior low-density soft tissue mass overlying sternum.

Figure 2 Axial computed tomography demonstrates soft tissue mass anteriorly, centered on the costo-clavicular joint with mediastinal extension. Note the destructive change at the medial margin of the first and the lateral margin of the sternum.

Figure 3 Coronal computed tomography demonstrates some destructive change of the anterior first rib and widening of the first costo-clavicular joint.