ANGPT2 and neoplasm: Clinicopathologic features of tumor derived Ang-2 expression was closely related to tumor diameter (χ2=7.883, P=0.005), degree of differentiation (χ2=4.554, P=0.033), TNM stage (χ2=5.039, P=0.025), and 5-year survival rate (χ2=11.220, P<0.001).