Abstract
Thyroid cancer incidence more than tripled in last four decades. Among the different thyroid cancer histologic types, the differentiated thyroid cancer (DTC) represents 90% of cases, being classified as: papillary thyroid cancer (PTC) and follicular thyroid cancer (FTC). Although the DTC has an excellent prognostic, about 30% of cases show metastasis in regional lymph nodes and 2-13% of p…