The overall 5-year sur-vival rate was 51.96%. Cervical lymph node metastasis was proved histologically in 21/66 cases (31.8%). The 5-year survival rates in positive and negative node cases were 28.95% and 62.51% respectively.

• 劲淋巴结转移:术后经病理证实阳性者21例；淋巴结转移率31.；8%25(21/66)；颈部有淋巴结转移5年生存率为28