膜性肾炎(MGN)是成人难治性肾病的常见类型,虽确诊籁以肾活检,但有一定的临床特征以区别于其他肾炎类型。现就经肾活检确诊4例报道如下。一般资料:本组4例,男3例,女1例,年龄25～37岁,平均29.2岁,均为已婚成人。临床表现:3例隐匿起病,1例感冒发热后起病。主诉均为无明确原因的双下肢水肿。发病距肾活检时间6～12个月。具典型肾病综合症表现者4例,伴 Membranous nephritis (MGN) is a common type of refractory nephropathy in adults. Although diagnosed as renal biopsy, there are certain clinical features that distinguish it from other types of nephritis. Now confirmed by renal biopsy in 4 cases reported below. General information: The group of 4 patients, 3 males and 1 female, aged 25 to 37 years, mean 29.2 years old, are married adults. Clinical manifestations: 3 cases occult onset, 1 case of fever onset. The main complaints are no clear cause of lower extremity edema. The incidence of renal biopsy from 6 to 12 months. A typical nephrotic syndrome in 4 cases, with