PMC9922378_01
Axial view of MRI shows the glenoid cyst.
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FIG1
MRI was subsequently ordered. MRI showed a subchondral bone cyst at the glenoid fossa (Figure 1).
CT scan shows the location of the cyst.
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FIG2
Preoperatively, a supplementary CT scan was also obtained (Figure 2).
Loose body within the shoulder.
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FIG3
The diagnostic arthroscopy revealed a loose body measuring about 1.0 cm x 1.0 cm, which was identified as a piece of cartilage detached from the defect area (Figure 3), and a defect over the glenoid fossa at the lower anterior quadrant measuring 1.0 cm x 1.0 cm (Figure 4).
Defect area on the articular surface, with the cyst underneath it.
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FIG4
The diagnostic arthroscopy revealed a loose body measuring about 1.0 cm x 1.0 cm, which was identified as a piece of cartilage detached from the defect area (Figure 3), and a defect over the glenoid fossa at the lower anterior quadrant measuring 1.0 cm x 1.0 cm (Figure 4).
Post-curettage of the glenoid cyst.
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FIG5
The surgery was then converted to open surgery using the deltopectoral approach, and the cyst was curetted (Figure 5) and packed with an autologous bone graft (Figure 6) harvested from the left iliac crest.
The defect area filled with autologous bone graft.
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FIG6
The surgery was then converted to open surgery using the deltopectoral approach, and the cyst was curetted (Figure 5) and packed with an autologous bone graft (Figure 6) harvested from the left iliac crest.
Callus formation over curretted glenoid cyst.
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FIG7
An MRI of the shoulder was repeated six months postoperatively and showed that a callus had formed at the location of the cyst (Figure 7).