TP53 and neoplasm: By univariate analyses, we found that 9 variables were correlated to NSLN metastasis: tumor size, tumor type, LVI, expression of p53 in tumor, expression of Kiss-1 in positive SLNs, decrease of kiss-1 expression from tumor to positive SLN, number of positive SLN, size of SLN metastasis, and the ratio of SLN metastasis size and positive SLN size.