Reason: Evaluate for osteomyelitis History: left shoulder pain for 3 weeks post deep flu shot injection over lateral deltoid that may have penetrated bone. There is increased T2 and intermediate signal within the subdeltoid bursa with enhancement following gadolinium administration, consistent with subdeltoid bursitis. The underlying bone marrow signal is normal. The supraspinatus, infraspinous, teres minor, and subscapularis tendons are intact without evidence of tearing. The biceps tendon is intact. The glenoid labrum appears normal. There is a tiny amount of fluid within the joint .
Findings consistent with subdeltoid bursitis.