外伤诱发软骨肉瘤一例报告解放军第一六五医院杨绍安患者，女，３０岁。７年前左小腿胫前被利器碰伤，当时局部软组织肿胀，１周后肿胀自行消退，但于胫前受伤处们及一质硬之肿块，约蚕豆大小，不活动，伴间歇性隐痛，十余年来病情无变化，未就诊，近３个月来，肿块逐渐增... Trauma-induced chondrosarcoma: A case report of the 165th hospital of the People’s Liberation Army, Yang Shaoan, female, 30 years old. 7 years ago, the left calf was injured by a sharp weapon. At that time, the local soft tissue swelled. After one week, the swelling subsided on its own. However, before the ankle, there was a hard mass with about a size, inactivity, and intermittent pain. There has been no change in the condition for more than a decade, and no treatment has been given. In the past 3 months, the tumor has gradually increased...