FOXP3 and neoplasm: Foxp3 was significantly associated with tumor TNM stage (χ2 = 22.025, p <0.01), vascular cancer emboli (χ2 = 5.089, p =0.022), neural invasion (χ2 = 5.289, p =0.018), lymph node metastasis (χ2 = 15.121, p =0.003), and distant metastasis (χ2 = 6.759, p =0.007).