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Washington University Experience | NEOPLASMS (MENINGIOMA) | Microcystic | 3A2 Meningioma, microcystic (Case 3) H&E 6
3A2-4 In the more differentiated regions, the tumor resembles an atypical meningothelial and microcystic meningioma, WHO grade 2. Classic meningothelial cytology is seen in this component, although there are macronucleoli, focal sheeting architecture, and increased mitotic figures.