Combined analysis of the immunohistochemistry results from the tumors and venous tumor thrombi showed a significant association between EVI1 positivity and poorer patient outcome: multivariate Cox regression (including age and gender) overall survival (OS) EVI1 positivity hazard ratio (HR) = 2.94, 95% CI = 1.13–7.63, p = 0.027 (Figure 1C). This evidence concerns the gene MECOM and neoplasm.