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Pediatr Nephrol. 2004 Jun;19(6):682-4. Epub 2004 Mar 11.

Development of IgA nephritis following cat scratch disease in a 13-year-old boy.

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Department of Pediatrics, Division of Nephrology, A.I. duPont Hospital for Children, 1600 Rockland Road, P.O. Box 269, Wilmington, DE 19899, USA.


We describe a 13-year-old boy who presented with hematuria and intermittent low-grade proteinuria at the time when he was diagnosed with cat scratch disease. Two months before presentation, he had a negative urinalysis during a routine physical evaluation. He continued to have microscopic hematuria for the next 6 months, when he developed gross hematuria and recurrence of low-grade proteinuria. The renal biopsy showed evidence of mild/moderate IgA nephropathy. We speculate that the immunological changes associated with cat scratch disease in this patient may have triggered the development of IgA nephropathy. A history or serological evidence of infection with Bartonella henselae may need to be sought in patients presenting with IgA nephritis.

[Indexed for MEDLINE]

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