PMC8053457_01
Preoperative imaging. (a) Mid-sagittal T2WI with fat suppression magnetic resonance imaging (MRI) demonstrating multiple (4) extradural spinal arachnoid cysts at T3-T5 and T10-L1 levels. (b) Axial T2 MRI demonstrating the surgically approached cyst at the T11 level, with spinal cord compression.
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F1
T10-L1 levels [Figure 1].
Intraoperative images. (a) View of the extradural cyst after T10-L1 laminectomy. (b) View of the point of communication with the cerebrospinal fluid space through the dura laterally, at the T11 level.
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PMC8053457_01_SNI-12-101-g002.jpg
F2
T10/11 level for a complete cyst resection [Figure 2]. The point of communication with the CSF space through the dura was identified laterally and closed by suture ligation.