European vs 2015-World Health Organization clinical molecular and pathological classification of myeloproliferative neoplasms

Figure 7 Laboratory findings at time of presentation in symptomatic with thrombocythemia subdivided in 30 primary thrombocythemia (= essential thrombocythemia) and 20 polycythemia vera patients seen between 1975 and 1985. Hb levels are normal in PT and elevated in PV[16]. Leukocytes were normal or elevated in PT and PV. Leukocyte alkaline phosphatase score was much more elevated in PV than in PT with normal values in 6 PT patients. Platelet counts were were between 400 and 1000 × 10/L in the majority of the 30 PT patients. Serum uric acid levels were normal in PT and usually elevated in PV. PT: Primary thrombocythemia; LAP: Leukocyte alkaline phosphatase; PV: Polycythemia vera.