The<unk>  is associated with any damage to the antero-inferior labrum. Most commonly due to anterior shoulder dislocation. The<unk>  often occurs after the initial dislocation. In chronic cases, there may be fibrosis and resynovialization of the labrum and periosteum. The<unk>  is best identified on MR arthrography. Additional views in ABER (ABduction and External Rotation) of the shoulder aid in this diagnosis. Differential diagnoses include: * Bankart<unk>  * Alpsa<unk>  * GLAD * HAGL * BHAGL
Perthes lesion
Joint dislocation
Osteophyte
Retrolisthesis
Back strain
Nonunion
Leri pleonosteosis
Disc protrusion