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KMID : 0359420210390040188
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Korean Journal of Sports Medicine
2021 Volume.39 No. 4 p.188 ~ p.192
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Osseous Erosion by Spinoglenoid Ganglion Cyst in Adolescent Baseball Player: A Case Report
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Jin Hong-Ki
Cho Hyung-Lae
Kim Ji-Hoon
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Abstract
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Spinoglenoid notch cysts, a certain expansion form of paralabral ganglion cyst, are often associated with superior labrum anterior to posterior (SLAP) lesions in overhead athletes. We report a unique case of spinoglenoid notch cyst that extended to posterosuperior bony glenoid in a 16-year-old high school male baseball fielder. Magnetic resonance imaging showed multilobulated spinoglenoid notch ganglion cyst associated with posterosuperior SLAP lesion, and computed tomography (CT) revealed distinct osseous erosion of posterosuperior glenoid. The cyst was enlarged on serial follow-up imaging, and his symptoms were continued, arthroscopic decompression was performed via posterosuperior capsulotomy. The concomitant SLAP lesion was not repaired, but only marginal debridement was performed. At 6 months after surgery, he returned to game without symptoms, and the bony glenoid lesion was almost remodeled on follow-up CT. In adolescent athletes, significant osseous erosion by spinoglenoid notch cyst may be accentuated due to the skeletal immaturity of posterosuperior glenoid.
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KEYWORD
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Ganglion cysts, Spinoglenoid notch, Superior labrum anterior to posterior lesion, Glenoid, Erosion
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