Figure 1.

72 year-old female with right shoulder pain following influenza vaccination, secondary to vaccine-related subacromial/subdeltoid bursitis.

FINDINGS: Initial imaging included a) AP and b) axillary view radiographs. Radiographs showed no acute fracture or dislocation. There was a 9 mm ossification (arrow) noted at the anterior aspect of the joint, which was interpreted as an ossified chondral body within the bicipital groove. The acromioclavicular and glenohumeral joint spaces were maintained.