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Histological and immunohistochemical findings of classic type medulloblastoma. A. The tumor consists of sheets of poorly differentiated cells that lack distinctive features [hematoxylin‐and‐eosin (H&E), ×400]. B. Tumor cells show strong Wnt5a expression in the form of membranous and cytoplasmic staining (Wnt5a antibody, ×400). C. Similarly, tumor cells show strong Ror2 expression in the form of membranous and cytoplasmic staining (Ror2 antibody, ×400).
