Background and Objectives: Within the group of patients with papillary thyroid microcarcinoma (PTMC), the prognostic factors have not been well defined and the optimal treatment has not been proved.

• 背景和目的：在乳头状甲状腺微癌（PTMC）患者中，还没有界定预后因子，也没有找到最佳治疗方案。