本文分析20例紫癜性肾炎患儿的临床资料及其组织学、免疫荧光、超微结构的改变。结果显示,肾小球病变在Ⅲ级以下者,临床都表现有血尿伴蛋白尿;Ⅳ级病变者,50%出现急性肾炎综合征;Ⅴ级病变者,全部出现肾病综合征并发急性肾炎综合征。表明肾小球病变程度与本病的临床表现有密切联系。 This article analyzes the clinical data of 20 cases of children with purpura nephritis and histological changes, immunofluorescence, ultrastructural changes. The results showed that glomerular lesions in grade Ⅲ or less, clinical manifestations of hematuria with proteinuria; Ⅳ grade lesions, 50% of acute nephritic syndrome; V grade lesions, all with nephrotic syndrome complicated by acute nephritic syndrome . That the degree of glomerular lesions and the clinical manifestations of the disease are closely linked.