Adult Male With Right Shoulder Pain

A, Right upper extremity veins are engorged because of elevated right subclavian venous pressure. B, Left upper extremity veins are normal.

The right clavicle is depressed, but the shoulder is elevated and protracted.

Plain chest radiograph was interpreted as normal.

CT of the right clavicle posterior to the sternum (black arrow) compared with the normal left clavicle (white arrow). Used with permission of Nikolaj Wolfson, MD, FRCSC, Department of Orthopedic Surgery, Keck School of Medicine, University of Southern California, USC/LAC Medical Center, Los Angeles, CA.