发生于软组织的成骨肉瘤甚少见,国内1958年报告2例本文报告发生于少女1例,并结合文献做一简要讨论。病例介绍女,16岁。右小腿肿胀、疼痛2月余而入院。检查:全身一般情况尚好,有关生化检查均在正常范围。右小腿呈弥漫性肿胀,周径65cm,按之凹陷,局部压痛,活动受限。X线照片:右胫、腓骨密度正常,未见骨质破 Occurrence of osteosarcoma in soft tissue is rare. In the year of 1958, 2 cases reported in this article occurred in 1 case of adolescent girls. A brief discussion was made with the literature. Case description Female, 16 years old. The right leg was swollen and pain was admitted for more than two months. Examination: The general condition of the whole body is still good, and the relevant biochemical examinations are in the normal range. The right calf showed diffuse swelling with a circumference of 65cm. According to the depression, local tenderness and limited mobility. X-ray photos: normal density of the right iliac bone and tibia, no bone fracture