![Figure][1] A 66-year-old man presented with a white blood cell count of 62.6 × 109/L. Peripheral blood (PB) smear showed 80% small- to medium-sized atypical lymphoid cells with irregular to… Click to show full abstract
![Figure][1] A 66-year-old man presented with a white blood cell count of 62.6 × 109/L. Peripheral blood (PB) smear showed 80% small- to medium-sized atypical lymphoid cells with irregular to cleaved (panel A; original magnification ×500, Wright-Giemsa stain) or binucleated nuclear contours
               
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