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Fibrillary Glomerulopathy with a High Level of Myeloperoxidase-ANCA: A Case Report

机译:纤维状肾小球病具有高水平的Myeloperoxidase-ANCA:案例报告

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An elderly woman was admitted with the chief complaint of gross hematuria. Laboratory values indicated a high myeloperoxidase-ANCA level. In renal histological examination, 40% of the glomeruli showed crescent formation, but immunofluorescence staining showed positivity for IgG, C3, and C1q. Furthermore, the deposition of fibrils in the glomerulus was noted on electron microscopy, and immunohistochemical staining showed strong positivity for DNA-J heat shock protein family member B9 (DNAJB9). Crescent formation is a common feature of fibrillary glomerulonephritis (FGN). Thus, in ANCA-positive crescentic glomerulonephritis, immunohistochemical assessments for immunoglobulins and DNAJB9, as well as electron microscopy, are important to correctly diagnose FGN.
机译:一名年长的妇女们承认了总血尿的主要抱怨。实验室值表明了高髓氧基酶-ANCA水平。在肾组织学检查中,40%的肾小球显示出新月形形成,但免疫荧光染色显示IgG,C3和C1Q的阳性。此外,在电子显微镜下注意到肾小球中的原纤维,免疫组化染色显示DNA-J热休克蛋白家族成员B9(DNAJB9)的强阳性。月牙形成是纤维状肾小球肾炎(FGN)的常见特征。因此,在ANCA阳性的新月形肾小球肾炎中,免疫球蛋白和DNAJB9的免疫组化评估以及电子显微镜,对正确诊断FGN是重要的。

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