The intact inferior glenohumeral ligament normally extends from the glenoid labrum to the anatomic neck of the humerus, forming a U shape on oblique coronal images. Avulsion of the right inferior glenohumeral ligament from the neck of the humerus results in its humeral end falling inferiorly forming a J shape. This J-shaped appearance of the torn right inferior glenohumeral ligament in cases of humeral avulsion of the glenohumeral ligament (HAGL) is referred to as the J sign. On the left side, the J is reversed.
Special thanks to Dr. David Wells for the case.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.