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Washington University Experience | NEOPLASMS (HEMATOLYMPHOID) | Lymphoma, primary | 4C1 Lymphoma (Case 4) CD20
4C1,2 The tumor cells show diffuse immunoreactivity for CD20 (4C1), CD45, and Bcl2 (4C2) with scattered Bcl6 positive cells. ---- The tumor cells are negative for CD10 (not shown), cytokeratin 7, cytokeratin 20, TTF-1 and S-100 protein. The in-situ hybridization for Epstein-Barr virus is negative.
