Case Report

Extranodal NK/T Cell Lymphoma Causing Cardiorespiratory Failure

Figure 2

Cytology of pericardial fluid. (a) Diff-Quick stain (×400) shows numerous atypical lymphoid cells with abundant cytoplasm and irregular nuclear contour. (b) The atypical cells are strongly positive for EBV with in situ hybridization (×200). (c) Cells are also immunohistochemically positive for CD3 (×200). (d) Cells are immunohistochemically negative for CD56 (×200).