In VTE and MPN groups we found a positive correlation between the total number of CEC and the WBC count (VTE: r = 0.515, p = 0.041; MPN: r = 0.738, p = 0.001) and between the number of CD62E+ CEC and the WBC count (VTE: r = 0.605, p = 0.013; MPN: r = 0.610, p = 0.009). This evidence concerns the gene SELE and myeloproliferative neoplasm.