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ALPSA lesion. Axial DESS image of shoulder MR arthrogram showing, avulsion of IGL through its anterior band attachment to the anterior labrum, with the displacement of labroligamentous structures medially and inferiorly (arrow).

ALPSA lesion. Axial DESS image of shoulder MR arthrogram showing, avulsion of IGL through its anterior band attachment to the anterior labrum, with the displacement of labroligamentous structures medially and inferiorly (arrow).