18-year-old male football player with two separate injuries to the right shoulder in the past two weeks with normal outside ER radiographs. Still in pain with mild weakness to abduction. ROTATOR CUFF: The supraspinatus, infraspinatus, teres minor, and subscapularis tendons are intact. No focal tear is evident. The muscle bellies are within normal limits.SUPRASPINATUS OUTLET: The acromioclavicular joint is within normal limits. An os acromiale is is present. A type II acromion is noted.GLENOHUMERAL JOINT AND GLENOID LABRUM: Humeral head is well-seated in the glenoid cavity. The labrum is intact without evidence of focal fluid-filled tear. No abnormal marrow signal.BICEPS TENDON: The biceps tendon is intact and within the bicipital groove.ADDITIONAL
Os acromiale may be the cause of the patient's pain. No evidence of trauma is noted. 