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Figure 3: Photomicrograph showing a section from spinal lesion showing (×200; H&E) tumor disposed in sheets displaying, monomorphous round to oval nuclei, evenly distributed chromatin, indistinct nucleoli, and perinuclear clearing (a). On immunohistochemistry (X200), tumor cells show Ki-67 < 1% (b), cytoplasmic isocitratedehydrogenease positivity (c) and retained nuclear ATRX expression (d).

Figure 3: Photomicrograph showing a section from spinal lesion showing (×200; H&E) tumor disposed in sheets displaying, monomorphous round to oval nuclei, evenly distributed chromatin, indistinct nucleoli, and perinuclear clearing (a). On immunohistochemistry (X200), tumor cells show Ki-67 < 1% (b), cytoplasmic isocitratedehydrogenease positivity (c) and retained nuclear ATRX expression (d).