我们自1975年以来共收治经病理证实滑膜肉瘤12例,现报告如下。一、一般情况:本组最小8岁,最大58岁,50岁以下占66.7％。男性9例,女性3例,男女之比为3∶1。病程最短20天,最长20年,6个月以上9例,占75％。部位以四肢多见,尤以下肢膝部及大腿多见。12例中下肢7例(膝部5例,大腿2 We have treated 12 cases of synovial sarcoma confirmed by pathology since 1975. The report is as follows. First, the general situation: the minimum age of 8 in this group, the maximum 58 years old, accounting for 66.7% of people under the age of 50. There were 9 males and 3 females. The male to female ratio was 3:1. The shortest duration of the disease is 20 days, and the longest is 20 years. In 9 months, it is 9 months, accounting for 75%. Extremities are more common in the limbs, especially in the lower knees and thighs. 12 cases of lower limbs in 7 cases (5 knees, 2 thighs)