1病例报告患者,男,9岁。因20d前无明显诱因出现腹部、四肢红色肿块入院。无瘙痒、疼痛,无破溃,伴发热,体温最高达38.5℃,伴乏力,患儿自发病以来,感觉乏力,精神欠佳,自服头孢类药物及退热药(具体用法不详)后,皮肤颜色变浅,肿块有所缩小,但 1 case report patient, male, 9 years old. Due to no obvious incentive before 20d appeared abdomen, limbs, red mass admission. No pruritus, pain, no ulceration, with fever, body temperature up to 38.5 ℃, with fatigue, the incidence of children since the onset of fatigue, lack of energy, since the service of cephalosporins and antipyretics (specific usage is unknown) Skin lightening, lumps have shrunk, however