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Pathologic findings. (a) Histology of the hyaline-vascular form. HE, 40×: lymph node with lymphoid cells in an “onion skin” pattern with a hyaline center. (b) HE, 200×. (c) Hodgkin's lymphoma. HE, 400×. (d) Negativity for CD30. (e) Negativity for CD15. (f) Atypical cells immunoexpressing CD20. (g) Arrow shows neoplastic cells surrounded by CD3+ T cells and (h) Arrow shows neoplastic cells surrounded by CD57+ T cells.
