患者男性，29岁．四川民工。因右小腿碰伤后疼痛3天来诊。体检：一般情况好，右小腿胜前皮肤有一约8×10cm范围红肿．其上有约2～3cm长的结痂伤口。红肿边界不清、压痛明显．余未见异常。辅助检查：血白细胞10．8×109/L，中性0.80，淋巴0．20；X经片示右小腿骨质结构正常。诊 Patient male, 29 years old. Sichuan migrant workers. 3 days after the pain due to the right lower leg bump to the clinic. Physical examination: the general situation is good, the right leg superior to the skin has an about 8 × 10cm range of swelling. There are about 2 ~ 3cm long scab wound. Inflammatory boundary is unclear, tenderness obvious. I no abnormalities. Auxiliary examination: white blood cells 10.8 × 109 / L, neutral 0.80, lymph 0.20; X by the right leg showed that the normal bone structure. Clinic