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Washington University Experience | NEOPLASMS (HEMATOLYMPHOID) | Lymphoma, primary | 19B1 Lymphoma (Case 19) CD-20 (necrosis) 1 copy

19B1,2 Immunohistochemical stains show the larger cells exhibit strong, diffuse immunoreactivity for CD20. Notice the unusual appearance of necrotic B cells (arrow, 19B1)

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