Fig. 4From: Lymphoproliferative disorder during temozolomide therapy; a representative case of a formidable complication and management challengesHistopathological investigation of an enlarged cervical lymph node revealed dense infiltration of lymphocytes, and the normal lymph node architecture was widely effaced (A). Infiltration of small to medium-sized lymphocytes, plasma cells and histiocytes was observed (B). Large, atypical lymphocytes with prominent nucleoli were sparsely observed. These large lymphocytes were positive for CD20 (C) and PAX5 (D). Epstein-Barr virus (EBV) DNA was confirmed by in-situ hybridization (E)Back to article page