Twenty-five cases were followed-up from 7 months to 5 years, 4 (16%) cases had lung metastasis, 2 (8%) cases had lymphonode metastasis, 7 (28%) cases had recurrence, 10 (40%) cases had not been found metastasis or recurrence.

• 25例随访时间为7个月~5年,随访期内,4例(16%25)发生肺转移,2例(8%25)淋巴结转移,7例(28%25)局部复发,2例失访,余10例(40%25)未见复发及转移。