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Washington University Experience | NEOPLASMS (MENINGIOMA) | Meningioma - Clear cell | 25E2 Meningioma, clear cell & Whorling Sclerosing (Case 25) CD34 20X
25E1,2 Dilated, thin-walled, focally branching vessels are prominent. CD31 and CD34 highlight abundant thin-walled dilated vessels and capillaries throughout the tumor, but tumor cells are negative. There are also areas of back-to-back small, dilated vessels with thickened, hyalinized walls. No necrosis is present. Psammoma bodies are not present. No brain invasion is present.
