FIGURES LEGENDS
Figure 1: Preoperative MRI of the spine. Sagittal T2 (a), T1 (b) and
gadolinium enhanced T1 weighted images (c) demonstrate a relatively
well-defined intramedullary T2 hyperintense, T1 hypointense expansile
cord lesion spanning C5 down to T5 vertebral levels with Significant
perilesional cord edema extending to the cervicomedullary junction
superiorly and down to T10 vertebral level. The tumors showing
irregular, mainly peripheral enhancement and central areas of necrosis.
Figure 2: Microphotographs showing the histological features of the
lesion. A: A mostly dense textured area with Rosenthal fibres and
bipolar fibrillary cells. B: An area with loose texture. C: Focal
microvascular proliferation. D: Ki67 immunohistochemistry showing a very
low mitotic proportion of neoplastic cells. Scale bars: 200 μm.
Figure 3: Post-operative MRI the spine. Sagittal T2 (a) and gadolinium
enhanced T1 weighted images (b) show near complete resection of the
spinal tumor with small nodular residual tumor at the cranial extent a
well as significant cord decompression with reduced cord edema cranial
and caudal to the operative site.