肺炎球菌感染后发生肾小球肾炎的免疫机理尚未充分阐明。作者报告一例4岁女孩因高热、厌食、咽痛、全身违和与腹痛入院。嗣后两日,尿呈“茶色”。眶周与胫前轻度浮肿,尿蛋白浓度为300毫克/100毫升,每高倍视野有40～50红细胞,5～15白细胞,每低倍视野有3～8颗粒管型与1～2红细胞管型。胸片发现右肺中叶肺炎。无微血管病性溶血性贫血的证 The immune mechanism of glomerulonephritis after pneumococcal infection has not been fully elucidated. The author reported a 4-year-old girl hospitalized for fever, anorexia, sore throat, generalized violation and abdominal pain. The next two days, urine was “brown.” Periorbital and mild swelling before tibia, urinary protein concentration of 300 mg / 100 ml, each high power field has 40 to 50 red blood cells, 5 to 15 white blood cells, each low magnification 3 ~ 8 particles and 1 ~ 2 red blood cell tube type. Chest radiograph found middle lobe pneumonia. No evidence of microangiopathic hemolytic anemia