MPO-ANCA associated crescentic glomerulonephritis with numerous immune complexes: Case report

Ryuji Morizane, Konosuke Konishi, Akinori Hashiguchi, Hirobumi Tokuyama, Shu Wakino, Hiroshi Kawabe, Matsuhiko Hayashi, Koichi Hayashi, Hiroshi Itoh

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Background: Antineutrophil cytoplasmic antibody (ANCA)-associated crescentic glomerulonephritis (CGN) is a major cause of rapidly progressive glomerulonephritis (RPGN). ANCA-associated CGN is generally classified into pauci-immune RPGN, in which there are few or no immune complexes. Case Presentation. A 78-year-old man presented with RPGN after a 7-year course of chronic proteinuria and hematuria with stable renal function. A blood examination showed a high titer of myeloperoxidase (MPO)-ANCA. A renal biopsy showed crescentic glomerulonephritis with abundant subepithelial, intramenbranous and subendothelial deposits by electron microscopy, leading to the diagnosis of ANCA-associated CGN superimposed on type 3 membranoproliferative glomerulonephritis (MPGN). Conclusions: This case is unique in that type 3 MPGN and MPO-ANCA-associated CGN coexisted, and no similar case has been reported to date. Because ANCA-associated CGN has a predilection for elderly individuals and primary type 3 MPGN is rarely seen in this age group, coincidental existence appears less likely. This case may confer valuable information regarding the link between immune complex and ANCA-associated CGN.

本文言語English
論文番号32
ジャーナルBMC Nephrology
13
1
DOI
出版ステータスPublished - 2012

ASJC Scopus subject areas

  • 腎臓病学

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