患者　女,15岁。8年前无意中发现左小腿一包块,近1年肿块逐渐增大,活动时疼痛加重收住院。体检全身情况良好,无畸形,左小腿外侧可扪及4ｃｍ×10ｃｍ包块,质硬,推之活动差,皮温正常,无血管怒张。既往无外伤史。实验室检查正常。Ｘ线检查:左小腿软组织内见9ｃｍ×2ｃｍ及6ｃｍ×2 Female patient, 15 years old. 8 years ago inadvertently found a mass of the left calf, the mass gradually increased in the past year, the activity increased pain in hospital. Physical examination of the body in good condition, no deformity, left lateral calf palpable and 4cm × 10cm mass, hard, push the activities of poor, normal skin temperature, vascular anger. No previous history of trauma. Laboratory tests are normal. X-ray examination: left calf soft tissue see 9cm × 2cm and 6cm × 2