Hill-Sachs lesion – compression defect at the top of the humeral…

Hill-Sachs lesion – compression defect at the top of the humeral head at the posterolateral aspect. It is a sign of previous anterior shoulder dislocation at which time the humeral head will have impacted against the anteroinferior part of the glenoid creating the compression fracture. It is often associated with a Bankart lesion of the glenoid and with shoulder instability. The MRI image shows a Hill-Sachs lesion with adjacent bright signal marrow oedema indicating recent dislocation. 

from our tumblr blog: http://radiologysigns.tumblr.com/post/27856682364

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