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Washington University Experience | NEOPLASM (SELLAR) | Craniopharyngioma, adamantinomatous | 5C2 Craniopharyngioma, adamantinomatous (Case 5) B-catenin 2.jpg
An immunostain for beta-catenin shows diffuse cytoplasmic (membranous) reactivity with nuclear localization in ~1-2% of cells.