Pleural Fluid Cytology of the Polymorphous Variant of EBV-Positive Diffuse Large B-Cell Lymphoma: First Report and Distinction from a Reactive Process

<table>(a) Lymph node with small and large atypical lymphoid cells admixed with histiocytes, immunoblasts, plasma cells and eosinophils; H&amp;E 400x. (b) CD20 immunostain highlighting the small and large atypical B-cells. (c) Ki-67 highlighting the high proliferative rate. (d) EBER-ISH showing diffuse positivity.</table>

Case Reports in Pathology

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Figure 1: Pleural Fluid Cytology of the Polymorphous Variant of EBV-Positive Diffuse Large B-Cell Lymphoma: First Report and Distinction from a Reactive Process 

Figure 1 | Pleural Fluid Cytology of the Polymorphous Variant of EBV-Positive Diffuse Large B-Cell Lymphoma: First Report and Distinction from a Reactive Process 