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Clin Nephrol. 2002 Mar;57(3):246-50.

Acute endocapillary proliferative glomerulonephritis associated with human parvovirus B19 infection.

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  • 1Department of Internal Medicine, Koseiren Sanjo General Hospital, Sanjo, Japan.


A 36-year-old female developed acute nephritic syndrome associated with human parvovirus B19 (HPVB19) infection. Laboratory data showed proteinuria, hypocomplementemia, mild pancytopenia, the presence of immunoglobulin (Ig) M and IgG antibodies to HPVB 19 and positive reaction of serum HPVB19 DNA using a polymerase chain reaction (PCR). A renal biopsy showed endocapillary hypercellularity mainly of mononuclear cells with segmental apparent mesangiolytic change; fine granular IgM, IgG and C3 deposits were noted by immunofluorescence microscopy; relatively small electron-dense deposits were observed in the widened subendothelial spaces and the mesangium, and loosening of the mesangial matrix varied from place to place electron microscopically. PCR of HPVB19 DNA in the renal biopsy tissue was positive as well as in the peripheral blood. The histological findings suggested that immune-complex-mediated endocapillary proliferative glomerulonephritis is caused by acute HPVB 19 infection. We discuss the differences from poststreptococcal glomerulonephritis and the possible pathogenesis of acute endocapillary proliferative glomerulonephritis associated with HPVB19 infection.

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