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Figure 2: Photomicrograph (H and E, ×200) showing a meningioma disposed in whorls and sheets with tumor cells displaying indistinct cellular boundaries, round to oval nuclei and finely stippled chromatin (a). IHC showing tumor cells positive for EMA (b: ×400), S-100 (c: ×200), and vimentin (d: ×200)

Figure 2: Photomicrograph (H and E, ×200) showing a meningioma disposed in whorls and sheets with tumor cells displaying indistinct cellular boundaries, round to oval nuclei and finely stippled chromatin (a). IHC showing tumor cells positive for EMA (b: ×400), S-100 (c: ×200), and vimentin (d: ×200)