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Washington University Experience | NEOPLASMS (HEMATOLYMPHOID) | Lymphoma, primary | 13C1 Lymphoma, primary CNS, B-cell (Case 13) CD20 2.jpg
13C1,2 Immunohistochemistry shows that the neoplastic cells are strongly and diffusely positive for the B-cell lymphocyte marker CD20. (CD20 IHC)
