“…However, DTC, particularly papillary thyroid carcinoma, happens to be a multicentric tumor and tends to spread to the regional lymph nodes in the early stage of the disease [7]; some patients do die from DTC. Several investigators have analyzed various prognostic factors and have found that age, sex, tumor size, histologic type and grade of the tumor, and distant metastases are significant prognostic factors [1][2][3]8]. Other investigators have introduced scoring systems based on a patient's age, tumor size, tumor grade, and the presence of metastases [9,10].…”