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A, Lobulated tumor cells with vacuolated cytoplasm and well-demarcated cell borders characteristic of chordoid meningioma (inset) arising in a delicate fibrous background. B, Chordoid meningioma can also exhibit nested tumor cells (inset) with a more myxoid background. When unaccompanied by areas of typical meningioma or in a diminutive biopsy sample, correct identification of this meningioma variant can be challenging.
