The subacromial bursa (synonymous with subdeltoid bursa) plays a special role in the biomechanics of the shoulder joint and is a common cause of chronic shoulder pain. However, chronic subacromial bursitis is a challenge to diagnosis because of the muddled picture it presents on examination. The bursa`s intimate relationship with the joint capsule, rotator cuff tendons and the biceps tendon makes it difficult to diagnose definitively and treatment response can help to confirm or refute the diagnosis. Lesions commonly coexist at the shoulder and a primary lesion in the subacromial bursa can indirectly affect other structures lying close to it and vice versa. Introduction Anatomy Presentation Examination Differential diagnosis Treatment Corticosteroid injection Injection technique Other treatment
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