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Washington University Experience | NEOPLASMS (MENINGIOMA) | Brain Invasion | 21D2 Meningioma, brain invasion (Case 21) GFAP 10X
The area marked with an arrow shown in image #21D1 is shown at higher magnification in image #21D2. (GFAP IHC) ---- Comment: The collective findings are consistent with atypical meningioma with brain invasion, CNS WHO grade 2. The tumor reaches the designation of CNS WHO grade 2 due to the presence of brain invasion, necrosis, macronucleoli, and small cell change. (GFAP IHC)
