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Washington University Experience | NEOPLASMS - CRANIAL AND PARASPINAL NERVEs | Neurofibroma | 4C2 Neurofibroma, plexiform & Meningeal HP (Case 4) S-100 2.jpg
A close-up image shows the superior portion of the field to represent the plexiform neurofibroma and an unstained inferior aspect to be composed of hyperplastic arachnoidal cap cells. (S100 IHC)