MRI of HAGL lesions: four arthroscopically confirmed cases of false-positive diagnosis.
OBJECTIVE
The purpose of this article is to present the cases of four consecutive patients with preoperative MR diagnosis of humeral avulsion of the glenohumeral ligament (HAGL) who had no evidence of HAGL at arthroscopy.


CONCLUSIONS
These four cases suggest that the diagnosis of HAGL should be reserved for arthroscopy and illustrate the difficulty in distinguishing HAGL from other abnormalities of the inferior glenohumeral ligament complex with MRI. Thus, MRI findings classically associated with HAGL should be more broadly described as defects of the inferior glenohumeral ligament complex. This terminology more accurately describes the abnormalities of the inferior glenohumeral ligament complex that may be depicted by MRI.
Melvin
J Stuart
JS
Department of Orthopaedics, University of Pennsylvania, Philadelphia, PA, USA.
Mackenzie
John D
JD
Nacke
Elliott
E
Sennett
Brian J
BJ
Wells
Lawrence
L
D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods; D016477:Artifacts; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D006811:Humerus / Q000293:injuries* / Q000473:pathology*; D007593:Joint Instability / Q000175:diagnosis*; D008023:Ligaments, Articular / Q000293:injuries* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D012783:Shoulder Dislocation / Q000175:diagnosis*; D000070599:Shoulder Injuries; D012785:Shoulder Joint / Q000473:pathology