FOXP3 and metastatic malignant neoplasm in the lymph nodes: An increasing stromal FoxP3+ TIL infiltration was inversely correlated with UICC-stage (Pearson's correlation coefficient, r = -0.40; p = 0.001), number of lymph node metastases (r = -0.36; p = 0.009) and N category in general (r = -0.36; p = 0.023).