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Case Reports
. 2012:5:15-8.
doi: 10.4137/CMAMD.S7880. Epub 2012 Jan 18.

Anterosuperior glenoid impingement syndrome

Shelley S Bath  1 , Shaun S Bath, Jamshid Tehranzadeh
Affiliations
Case Reports

Anterosuperior glenoid impingement syndrome

Shelley S Bath et al. Clin Med Insights Arthritis Musculoskelet Disord. 2012.

Abstract

Anterosuperior glenoid impingement is a well documented cause of shoulder pain. It occurs when there is deep tearing of the subscapularis, with fibers becoming embedded between the anterosuperior glenoid and humeral head. To our knowledge, this has not been described in radiologic literature and we present MRI findings depicting this entity.

Keywords: MRI; glenoid; impingement; rotator cuff; subscapularis.

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Figures

Figure 1
Figure 1
Axial T2 WI from superior to inferior demonstrate partial undersurface tearing of the subscapularis. The arrow points to the deep fibers of the subscapularis, which is retracted and has become entrapped between the anterior glenoid and humeral head.
Figure 2
Figure 2
Sagittal (A) and Coronal (B) T2 WI redemonstrate partial tear of the subscapularis, proximal to its insertion on the lesser tuberosity. The coronal images (B) clearly depict the tear, with fluid seen where subscapularis muscle fibers normally run (arrow). Just above the fluid, several intact fibers are seen.
Figure 3
Figure 3
Coronal PD images demonstrate complete tear of the supraspinatous with myotendonous retraction (arrow).
See this image and copyright information in PMC

References

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