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Washington University Experience | NEOPLASMS (GLIAL) | Ependymoma - Microscopic | 25C Ependymoma, focal anaplasia, Grade III (Case 25) GFAP 2.jpg
Immunohistochemistry for glial fibrillary acid protein (GFAP) highlights the glial processes, including those of the tumor cells forming the perivascular pseudorosettes.