%0 Journal Article %T MPO-ANCA associated crescentic glomerulonephritis with numerous immune complexes: case report %A Ryuji Morizane %A Konosuke Konishi %A Akinori Hashiguchi %A Hirobumi Tokuyama %A Shu Wakino %A Hiroshi Kawabe %A Matsuhiko Hayashi %A Koichi Hayashi %A Hiroshi Itoh %J BMC Nephrology %D 2012 %I BioMed Central %R 10.1186/1471-2369-13-32 %X 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).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. %K Myeloperoxidase-antineutrophil cytoplasmic antibody %K Membranoproliferative glomerulonephritis %K Immune complex %K Rapidly progressive glomerulonephritis %U http://www.biomedcentral.com/1471-2369/13/32/abstract