When analyzing the histology of thyroid tumors, it was found that, for VEGFA, the follicular thyroid papillary carcinoma (n = 102) was the closest to normal tissue, while the classical thyroid papillary carcinoma (n = 358), tall thyroid papillary carcinoma (n = 36) and others (n = 9) were down-regulated in relation to normal tissue. This evidence concerns the gene VEGFA and thyroid gland papillary carcinoma.