Lymphatic inasion appears to be the only important factor in predicting local regional recurrence alone (P = 0.1), of which 67% occurred within the first postoperatie year.

• 淋巴结侵犯的出现是惟一重要的预测局部复发的因素（P=0.；1），其中67%25的患者出现在术后第一年。