Image: Polycythemia vera, blood smear
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Description: BONE MARROW: POLYCYTHEMIA VERA: MYELOID METAPLASIA PHASE
Blood smear from a 68-year-old woman with a 13-year history of polycythemia vera treated with phlebotomy, 32-P, and hydroxyurea. There was a 6-to 7-month history of decreasing hemoglobin level and platelet count. There are three red blood cell precursors present and slight to moderate anisopoikilocytosis. (Wright-Giemsa stain)
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