PMC8263280_01
(a) Axial T1-weighted MRI, (b) sagittal T1-weighted MRI, and (c) sagittal T2-weighted and short tau inverted recover MRI images demonstrating a large left T2-T3 synovial facet cyst within the spinal canal.
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fig1
T2-T3 on the left side. There was no contrast enhancement. There was severe cord compression. There was acute cord signal change at the T2 level (Figure 1).
Microscopic image showing denuded cyst lining with focal synovium present. Gross specimen size 4.0 x 1.3 x 0.5 cm.
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fig2
T1, T2, and T3 was performed followed by complete excision of a large 3 cm x 1.5 cm synovial cyst (Figure 2). The cyst was noticed to be originating from the left T2-T3 facet and demonstrated adhesions to the dura but was clearly extradural.
Sagittal, precontrast (a) and postcontrast (b), and axial postcontrast (c) MRI sequences 3 months postoperatively demonstrating maintained surgical decompression and no recurrent cyst formation.
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fig3
A follow-up MRI was obtained three months postoperatively and revealed persistently adequate decompression of the spinal cord with no cyst recurrence as compared to preoperatively (Figure 3).