1　病例报告患者男 ,34岁。因左大腿下部肿物 12年 ,生长加快 4个月于 1999年 3月 2日入院。 12年前发现左大腿下部内后“鸡蛋”大小肿物 ,渐长大。近 4个月明显增大 ,伴膝关节活动障碍 ,无明显疼痛。 3年前曾在当地医院活检示“韧带纤维瘤”。查体 :Ｔ 36 .5℃ ,浅表淋巴结无 1 Case report Male patient, 34 years old. Due to a 12-year tumor of the lower left thigh, the growth was accelerated for 4 months and was admitted on March 2, 1999. Twenty-one years ago, he discovered that the “egg” size tumor in the lower part of the left thigh grew up. Increased in the past 4 months, with knee joint dysfunction, no obvious pain. Three years ago, he had been biopsied at a local hospital to show “a ligamentous fibrosarcoma.” Physical examination: T 36 .5°C, no superficial lymph nodes