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EBV-positive MZL lymphoma in a 78-year old male (case 2). A, B. The subcutaneous mass is composed of sheets of monotonous plasmacytoid cells rimmed by small lymphocytes. C. Plasmacytoid features are shown at high power. D. CD20-positive small lymphocytes surround the atypical plasmacytoid cells, which are CD20-negative. E. Plasmacytoid cells are positive for kappa and F. also positive for CD38. G. Lambda is negative, while H. EBER is positive.
