17-year-old male with right shoulder instability, evaluate for intra-articular pathology ROTATOR CUFF: The rotator cuff appears normal.SUPRASPINATUS OUTLET: The acromioclavicular joint is normal. We see no fluid in the subacromial/subdeltoid bursa.GLENOHUMERAL JOINT AND GLENOID LABRUM: Glenohumeral joint alignment is normal. There is a linear band of increased signal intensity between the anterior inferior labrum and underlying glenoid suggesting a tear. There is a bandlike low signal intensity extending from the anterior inferior labrum to the medial aspect of the glenoid that may represent thickened periosteum. These findings are suggestive of a Perthes lesion. The anterior superior labrum also appears detached from the underlying glenoid but this may simply represent a normal variant sublabral foramen. There is gadolinium between the superior labrum and underlying glenoid which may also represent a normal variant sublabral sulcus. The posterior labrum is intact. BICEPS TENDON: The tendon of the long head of the biceps muscle appears normal.ADDITIONAL
Findings compatible with a Perthes lesion of the anterior inferior labrum.