![Figure][1] A 75-year-old man was investigated for persistent thrombocytosis/leukocytosis. He had history of night sweats and chronic anemia, but no thrombotic events. He had no splenomegaly and lactate dehydrogenase was… Click to show full abstract
![Figure][1] A 75-year-old man was investigated for persistent thrombocytosis/leukocytosis. He had history of night sweats and chronic anemia, but no thrombotic events. He had no splenomegaly and lactate dehydrogenase was persistently elevated (380 U/L). Complete blood count showed:
               
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