ISSN 1006-298X      CN 32-1425/R

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肾脏病与透析肾移植杂志 ›› 2019, Vol. 28 ›› Issue (2): 189-193.DOI: 10.3969/j.issn.1006-298X.2019.02.020

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刚果红阳性的纤维性肾小球肾炎

  

  • 出版日期:2019-04-28 发布日期:2019-05-06

Congophilic fibrillary glomerulonephritis

  • Online:2019-04-28 Published:2019-05-06

摘要:

青年女性,临床表现为水肿,大量蛋白尿、大量镜下血尿,低蛋白血症,血清肌酐升高,血压偏高。肾活检组织形态学改变为肾小球系膜区及血管袢较多PAS弱阳性、不嗜银的异常物质沉积,免疫荧光肾小球IgG多克隆及κ、λ轻链阳性,电镜下观察到肾小球系膜区大量、基膜内皮下和上皮侧少量直径为14~27 nm纤维丝状物质沉积,刚果红染色肾小球弱阳性,DNAJB9染色肾小球强阳性,最终诊断为刚果红阳性的纤维性肾小球肾炎。

 

关键词: 纤维性肾小球肾炎, 淀粉样变性, 刚果红, 纤维丝

Abstract:

A 22yearold female presented as massive proteinuria,hematuria,hypoalbuminemia,renal dysfunction and hypertension.Renal biopsies revealed weak PASpositive and nonargyrophilic deposits in mesangial areas and along GBM.Immunofluerescence indicated glomerular positive staining for polyclonal IgG,κ and λ light chain.Ultrastructral examination indicated randomly arranged fibrils in the mesangium,subendothelial and subepithelial area,1427 nm in diameter.Congo red staining was weakly positive. DnaJ homolog subfamily B member 9(DNAJB9) staining by Immunohistochemistry showed strong positive. The final diagnosis was congophilic fibrillary glomerulonephritis.

Key words: fibrillary glomerulonephritis, amylodosis, Congo red, fibril