Veil of obscuration sign (shoulder)

Dr Subhan Iqbal et al.

Veil of obscuration sign is a sign of posterior shoulder dislocation. It is generally seen on AP radiographs depicting a comminuted fracture of lesser tuberosity that projects over the glenohumeral joint giving rise to a "cloud-like" density or "veil of bone" density, which hides a posterior shoulder dislocation. 

Epidemiology

Veil of obscuration sign seen in up to 40% of the patients who present with posterior shoulder dislocation 1.

Radiographic features

Plain radiograph

Fracture fragments of the lesser tuberosity are typically inferior and medially displaced, appear on plain radiographs as flat or disc-like shape.

CT

Lesser tuberosity fracture fragments are nicely seen on CT images with 2D and 3D reformats. 

Article information

rID: 83138
Section: Signs
Synonyms or Alternate Spellings:

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