患者,男,13岁,藏族,体重48kg,于2014年10月18日无明显诱因发现双下肢出现大小不等皮疹,伴腹痛不适,偶有恶心,无呕吐、发热,无咳嗽、呕血等症状。为进一步诊疗,门诊以“过敏性紫癜(混合型)”收住。自发病以来,患儿神志清楚,精神状况尚可,食欲欠佳,二便正常。否认肝炎、结核病史,无外伤手术史。否认药物及食物过敏史。查体:体温36.6℃,神志清楚,精神状况尚可,口唇无发 Patient, male, 13 years old, Tibetan, weight 48 kg, no obvious incentive on October 18, 2014 There were rash, abdominal discomfort, occasional nausea, vomiting, fever, no cough and vomiting . For further diagnosis and treatment, clinic to “allergic purpura (mixed type) ” to stay. Since the onset, children with clear mind, mental status is acceptable, poor appetite, two will be normal. Denied hepatitis, tuberculosis history, history of traumatic surgery. Denied the history of drug and food allergies. Physical examination: body temperature 36.6 ℃, conscious, mental status is acceptable, no hair lips