NPM2 and vascular neoplasm: Univariate analysis showed that NPM2 protein expression was negatively correlated with the following 4 clinicopathological factors: PCI score (χ2 = 4.216, P = 0.040), CC score (χ2 = 4.895, P = 0.027), and vascular tumor emboli (χ2 = 7.481, P = 0.006), SAEs (χ2 = 4.285, P = 0.038).