Furthermore, thyroid tumors are generally highly vascularized and overexpress Vascular Endothelial Growth Factor (VEGF) [38], and the role of both VEGF and Vascular Endothelial Growth Factor Receptor (VEGFR) in WDTC is well-described, with overexpression of either being linked to poorer prognosis [39,40,41]. This evidence concerns the gene VEGFA and thyroid tumor.