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Figure 2 | BMC Research Notes

Figure 2

From: Non-Hodgkin’s Lymphoma of the synovium discovered in total knee arthroplasty: a case report

Figure 2

In the synovial biopsy (A) a atypical lymphoid cell proliferation is present under the synovial surface (hematoxylin-eosin (HE), 2.5x) that (B) consists of a diffuse proliferation of large lymphoid cells (HE, 40x), showing (C) membranous expression of B-cell antigen CD20, which can be seen as brown deposit (40x). This formed the histological diagnosis Non-Hodgkin Lymphoma.

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