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Washington University Experience | NEOPLASMS (MENINGIOMA) | Psammomatous | 8B1 Meningioma, psammomatous (Case 8) H&E 4

8B1-4 This dural based tumor is composed of spindle and oval cells with vesicular nuclei, indistinct nucleoli and eosinophilic cytoplasm. Numerous laminated calcified structures consistent with psammoma bodies are present. There is more tumor in this example of psammomatous meningioma than in the suggested in the WHO CNS Tumor 2021 Bluebook presentation of the entity but the calcifications vary throughout the neoplasm. (H&E)

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