Fig. 2From: Extramedullary hematopoiesis in an inguinal lymph node: an unusual presentation of primary myelofibrosisa Pleural fluid cytology showing few atypical cells with large hyperchromatic nuclei. b H&E showing effacement of the nodal archetecture by extensive fibrosis. c H&E showing scattered large atypical cells. d CKAE1/AE3 negative. e Myeloperoxidase is negative in large atypical cells and highlights background mononuclear cells. f CD 61 highlighting atypical cellsBack to article page