Anterior labral periosteal sleeve avulsion (ALPSA)
Recurrent shoulder dislocation
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There is large amount of joint effusion.
There is an area of bony depression with surrounding bone marrow edema at the upper posterolateral aspect of the humeral head denoting Hill Sach's lesion.
There is tearing of the anterior labrum with infero-medial displacement of the anterior labrum suggesting ALPSA lesion.