A 52 year old male with a history of type 2 DM presented to the ED with right shoulder pain after a fall while stepping off a bus. The patient noted that he was unable to range the shoulder. Vitals were significant for HR of 104, otherwise unremarkable. On examination, the patient had a flattened shoulder with a “squared-off” appearance, a prominent acromion with the elbow flexed, and the arm held in slight abduction…

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