FOXP3 and nasopharyngeal carcinoma: The patients with NPC with a low density of FOXP3+, CD8+ TILs, neutrophils, and mast cells showed a significantly longer OS and PFS (p: 0.006, p: 0.018, p: 0.002).The prognostic impacts of CD8+ TILs (HR: 1.700, p: 0.036) and FOXP3+ (HR:1.714, p: 0.034) on OS were not proved.