Spinoglenoid notch ganglion cyst

Changed by Henry Knipe, 17 Mar 2022

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Spinoglenoid notch ganglion cysts ~~(SGNCs)~~ are a location-specific form of ganglion cysts that arise in the region of the spinoglenoid notch.

Epidemiology

They are generally rare and may be slightly commoner in males ².

Associations

labral tears of the shoulder: especially SLAP lesions⁵.

Clinical presentation

They may result in compression of the suprascapular nerve at the spinoglenoid notch. Other described features include infraspinatus atrophy, weakness with external rotation and posterior shoulder tenderness⁴.

Radiographic features

MRI

Typically seen as a variably sized cystic lesion at the size of the spinoglenoid notch. Signal characteristics are similar to other ganglion cysts and include:

T1: low signal
T2: high signal

MRI may also show associated infraspinatus atrophy.

Treatment and prognosis

Treatment options range from conservative management to aspiration of the cysts and excision⁴. Most cysts are thought to resolve with treatment ⁶.

Differential diagnosis

Imaging differential considerations include:

shoulder paralabral cyst extending into the spinoglenoid notch region
spinoglenoid notch varix ³

-<p><strong>Spinoglenoid notch ganglion cysts (SGNCs) </strong>are a location-specific form of <a href="/articles/ganglion-cyst">ganglion cysts</a> that arise in the region of the <a href="/articles/spinoglenoid-notch">spinoglenoid notch</a>.</p><h4>Epidemiology</h4><p>They are generally rare and may be slightly commoner in males <sup>2</sup>.</p><h5>Associations</h5><ul><li>
+<p><strong>Spinoglenoid notch ganglion cysts </strong>are a location-specific form of <a href="/articles/ganglion-cyst">ganglion cysts</a> that arise in the region of the <a href="/articles/spinoglenoid-notch">spinoglenoid notch</a>.</p><h4>Epidemiology</h4><p>They are generally rare and may be slightly commoner in males <sup>2</sup>.</p><h5>Associations</h5><ul><li>

References changed:

1. Yanny S & Toms A. MR Patterns of Denervation Around the Shoulder. AJR Am J Roentgenol. 2010;195(2):W157-63. <a href="https://doi.org/10.2214/AJR.09.4127">doi:10.2214/AJR.09.4127</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/20651176">Pubmed</a>
2. Killeen R, Browne R, Torreggiani W, Munk P. Radiology for the Surgeon: Musculoskeletal Case 39. Can J Surg. 2007;50(3):219-20. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2384283">PMC2384283</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/17568496">Pubmed</a>
3. Linda D, Harish S, Stewart B, Finlay K, Parasu N, Rebello R. Multimodality Imaging of Peripheral Neuropathies of the Upper Limb and Brachial Plexus. Radiographics. 2010;30(5):1373-400. <a href="https://doi.org/10.1148/rg.305095169">doi:10.1148/rg.305095169</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/20833856">Pubmed</a>
4. Piatt B, Hawkins R, Fritz R, Ho C, Wolf E, Schickendantz M. Clinical Evaluation and Treatment of Spinoglenoid Notch Ganglion Cysts. J Shoulder Elbow Surg. 2002;11(6):600-4. <a href="https://doi.org/10.1067/mse.2002.127094">doi:10.1067/mse.2002.127094</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/12469086">Pubmed</a>
5. Westerheide K & Karzel R. Ganglion Cysts of the Shoulder: Technique of Arthroscopic Decompression and Fixation of Associated Type II Superior Labral Anterior to Posterior Lesions. Orthop Clin North Am. 2003;34(4):521-8. <a href="https://doi.org/10.1016/s0030-5898(03)00102-0">doi:10.1016/s0030-5898(03)00102-0</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/14984191">Pubmed</a>
6. Schroder C, Skare O, Stiris M, Gjengedal E, Uppheim G, Brox J. Treatment of Labral Tears with Associated Spinoglenoid Cysts Without Cyst Decompression. J Bone Joint Surg Am. 2008;90(3):523-30. <a href="https://doi.org/10.2106/JBJS.F.01534">doi:10.2106/JBJS.F.01534</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/18310702">Pubmed</a>
7. Kim D, Park H, Park J, Yoon W. Ganglion Cyst of the Spinoglenoid Notch: Comparison Between SLAP Repair Alone and SLAP Repair with Cyst Decompression. J Shoulder Elbow Surg. 2012;21(11):1456-63. <a href="https://doi.org/10.1016/j.jse.2012.01.013">doi:10.1016/j.jse.2012.01.013</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22541869">Pubmed</a>
1. Yanny S, Toms AP. MR patterns of denervation around the shoulder. AJR Am J Roentgenol. 2010;195 (2): W157-63. <a href="http://dx.doi.org/10.2214/AJR.09.4127">doi:10.2214/AJR.09.4127</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/20651176">Pubmed citation</a><span class="auto"></span>
2. Killeen RP, Browne RF, Torreggiani WC et-al. Radiology for the surgeon: musculoskeletal case 39. Can J Surg. 2007;50 (3): 219-20. <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2384283">Free text at pubmed</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/17568496">Pubmed citation</a><span class="auto"></span>
3. Linda DD, Harish S, Stewart BG et-al. Multimodality imaging of peripheral neuropathies of the upper limb and brachial plexus. Radiographics. 2010;30 (5): 1373-400. <a href="http://dx.doi.org/10.1148/rg.305095169">doi:10.1148/rg.305095169</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/20833856">Pubmed citation</a><span class="auto"></span>
4. Piatt BE, Hawkins RJ, Fritz RC et-al. Clinical evaluation and treatment of spinoglenoid notch ganglion cysts. J Shoulder Elbow Surg. 2002;11 (6): 600-4. <a href="http://dx.doi.org/10.1067/mse.2002.127094">doi:10.1067/mse.2002.127094</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/12469086">Pubmed citation</a><span class="auto"></span>
5. Westerheide KJ, Karzel RP. Ganglion cysts of the shoulder: technique of arthroscopic decompression and fixation of associated type II superior labral anterior to posterior lesions. Orthop. Clin. North Am. 2004;34 (4): 521-8. <a href="http://www.ncbi.nlm.nih.gov/pubmed/14984191">Pubmed citation</a><span class="auto"></span>
6. Schroder CP, Skare O, Stiris M et-al. Treatment of labral tears with associated spinoglenoid cysts without cyst decompression. J Bone Joint Surg Am. 2008;90 (3): 523-30. <a href="http://dx.doi.org/10.2106/JBJS.F.01534">doi:10.2106/JBJS.F.01534</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/18310702">Pubmed citation</a><span class="auto"></span>
7. Kim DS, Park HK, Park JH et-al. Ganglion cyst of the spinoglenoid notch: comparison between SLAP repair alone and SLAP repair with cyst decompression. J Shoulder Elbow Surg. 2012;21 (11): 1456-63. <a href="http://dx.doi.org/10.1016/j.jse.2012.01.013">doi:10.1016/j.jse.2012.01.013</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/22541869">Pubmed citation</a><span class="auto"></span>

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