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TCHRLBCL. (A) H&E stained section (100×) showing sheets of mature small lymphocytes and histiocytes, with occasional large atypical lymphoid cells; (B) CD20 stain highlights many larger atypical B-cells than were apparent by H&E (immunohistochemistry, 400× magnification). TCHRLBCL, T-cell histiocyte rich large B-cell lymphoma.
