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Washington University Experience | NEOPLASMS (MENINGIOMA) | Meningioma - Clear cell | 17C Clear cell meningioma (Case 17) Ki67 20X 2
The MIB-1 (Ki-67) proliferative index is modest. ---- The immunohistological and histologic features are those of atypical meningioma with clear cell features, WHO Grade 2.