[ANGIOIMMUNOBLASTIC T-CELL LYMPHOMA]. The node shows a polymorphous population of cells including small neoplastic lymphocytes with clear cytoplasm, occasional larger lymphocytes, immunoblasts, eosinophils, and plasma cells. Larger Reed-Sternberg-like neoplastic cells may also be present. It is however, the presence of increased eosinophils, plasma cells, and immunoblasts that gives the lymphoma its characteristic appearance. The presence of small to medium-sized lymphoma cells with moderate to abundant clear to pale cytoplasm is also a characteristic feature. These lymphocytes show staining for CD4, CD10, CXCL13, bcl6, and PD-1 by immunophenotyping.