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病例1: 一16个月白种男孩由于持续两天的紫癜就诊于Emory儿科门诊。全身瘀点但并无肝大或淋巴结病。既往无病毒性疾病史。病人在紫癜发作3周前曾注射过MMR疫苗。出血时间9.5分,白细胞计数9700/mm~3,血红蛋白12.8g/dl,血细胞压积41.5％,血小板计数16000/mm~3。骨髓检查显示,红细胞生成和骨髓生成正常伴巨核细胞增加。未测定PAIgG。用泼尼松治疗,mg/(kg·d)4周后血小板计数为346000/mm~3,在两个月追踪时,病人血小板计数仍保持正常。病例2
Case 1: A 16-month-old white boy attends an Emory pediatric clinic due to a purpura lasting for two days. Whole body petechia but no hepatomegaly or lymphadenopathy. Past history of no viral diseases. The patient had been injected with MMR vaccine 3 weeks before the episode of purpura. Bleeding time 9.5, white blood cell count 9700 / mm ~ 3, hemoglobin 12.8g / dl, hematocrit 41.5%, platelet count 16000 / mm ~ 3. Bone marrow examination showed normal erythropoiesis and bone marrow production with increased megakaryocytes. PAIgG was not determined. After treatment with prednisone, the platelet count was 346000 / mm ~ 3 after 4 weeks in mg / (kg · d). The patient’s platelet count remained normal after two months of follow-up. Case 2