PMC4960930_01
(a) Sagittal T2 dorsal magnetic resonance imaging (MRI) sequences showing multiple arachnoid cyst causing an important compression on spinal cord. (b) Axial T2 dorsal MRI sequences showing a cyst that compresses the spinal cord. (c) A sagittal T2 dorsal MRI showing cyst removal and intramedullary dilatation. (d) Axial T2 dorsal MRI showing intramedullary central canal dilatation
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F1
The patient underwent a whole spine MRI where dorsal MRI showed multiple intradural arachnoid cysts which caused an important spinal cord compression [Figure 1a and b]. In the radiological follow-up after 3 and 9 months after the surgery, the dorsal MRI showed a dilatation of the central canal with a localized intramedullary arachnoid cyst [Figure 1c and d].
Intrasurgical photos obtained using operative microscope (Opmi Pentero). (a) Pre-removal arachnoid cyst. A diffuse thickening of arachnoid with calcification. (b) After removal of the arachnoid cyst, when the spinal cord expanded, we left only a part that was tightly attached to the spinal cord
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F2
Intraoperatively, a diffuse thickening of the arachnoid and diffuse calcification were seen [Figure 2a]. The aim of our procedure was to obtain a cranial-caudal liquoral communication, which was obtained at the end of the surgery when the spinal cord expanded [Figure 2b].