甲状腺乳头状癌 (papillarythyroidcarcinoma ,PTC)是最常见的内分泌系统恶性肿瘤 ,占所有甲状腺癌新发病例的 80 %。因其分化程度高 ,肿瘤生长缓慢 ,术后预后较好 ,10年生存率可以达到 90 %以上[1] 。多年来围绕手术切除范围、是否行颈部淋巴结廓清术、是单侧廓清还是双侧廓清 Papillary thyroid carcinoma (PTC) is the most common endocrine malignant tumor accounting for 80% of all new cases of thyroid cancer. Due to its high degree of differentiation, tumor growth is slow, postoperative prognosis is good, 10-year survival rate can reach 90% or more [1]. Over the years around the scope of surgical resection, whether the line of cervical lymph node dissection, is the one-side clearance or bilateral clearance