J sign (shoulder)

The J sign refers to the appearance of the inferior glenohumeral ligament in the presence of a humeral avulsion of the glenohumeral ligament (HAGL lesion). The normal U-shaped inferior glenohumeral recess is retracted away from the humerus, appearing in the shape of "J" in right shoulder, or reversed "J" in left shoulder in coronal oblique views 2.

Share article

Article information

rID: 7516
Section: Signs
Synonyms or Alternate Spellings:
  • J sign of shoulder
  • J-sign of shoulder

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.