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Washington University Experience | NEOPLASMS (MENINGIOMA) | Whorling-Sclerosing | 1G4 Meningioma, whorling sclerosing (Case 1) Trichrome 3
Additional tumor cell image. (TRI) ---- Ancillary findings: Smooth muscle actin highlights the vessels. The CEA is negative. The Ki-67 proliferation index is low. ---- The histomorphologic and immunohistochemical stains are consistent with a whorling-sclerosing variant of meningioma with focal brain invasion.
