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Washington University Experience | NEOPLASMS (PINEAL) | Pineoblastoma | 4D1 Pineoblastoma (Case 4) NF 4.jpg
4D1-3 Although tumor perikaryal cytoplasm is not stained for neurofilament protein, there are small subsets of patchy clustered tumor cells with cytoplasmic positivity and prominent immunoreactivity for processes. (NF IHC)