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Washington University Experience | NEOPLASMS (GLIAL) | Ependymoma, tanycytic | 5D Ependymoma, tanycytic (Case 5) CD99

There is diffuse positivity CD99 immunoreactivity (CD99 IHC). ---- Other: Focal cytoplasmic and dot-like immunoreactivity is seen with the D2-40 stain. The Ki-67 labeling index is low, estimated at 3.4%.

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