患儿女,2岁。因发现左大腿肿物2月余,于2006年10月3日入院。患儿于入院前2个月被发现左大腿上部外侧有鸽蛋大小肿物,后逐渐增大,表面发青,无红肿、疼痛,双下肢活动无障碍。查体:左大腿上部外侧局部隆起,表面皮肤呈青蓝色,皮下可触及直径3cm大小的肿物,质韧,不活动,边界不清,无 Children with children, 2 years old. Due to the discovery of left thoracic tumor more than 2 months, in October 3, 2006 admission. Children 2 months before admission was found in the outer part of the left thigh with pigeon egg mass, then gradually increased, the surface of the blue, no swelling, pain, both lower extremity activities accessible. Physical examination: the left upper thigh outside the local uplift, the surface of the skin was blue-green, subcutaneous reach 3cm in diameter tumor size, quality toughness, inactivity, the boundary is unclear, no