Fig. 1From: B-chronic lymphocytic leukemia showed triple transformation, to diffuse large B cell, CD20-negative, and T-cell neoplasm during ofatumumab treatment: a case reportPathology of CD20-positive diffuse large B-cell lymphoma from the lymph nodes biopsy. EBV was negative. Cervical lymph node biopsy showed diffuse growth of mid-sized lymphocytes. Immunohistochemical analysis revealed proliferating lymphoma cells that were positive for CD20, CD79α, and CD5, but negative for CD3Back to article page