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Nephron. 2001 Dec;89(4):402-7.

Mesangiocapillary glomerulonephritis caused by Puumala hantavirus infection.

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Medical School, University of Tampere, Tampere, Finland.


Nephropathia epidemica induced by Puumala hantavirus typically causes acute reversible renal function impairment. A typical renal biopsy finding is acute tubulointerstitial nephritis with slight glomerular mesangial changes. We describe here 5 patients who developed the nephrotic syndrome during the convalescent phase of an otherwise typical acute febrile nephropathia epidemica. Renal biopsy of all patients disclosed type I mesangiocapillary glomerulonephritis (MCGN). A clinical remission of the nephrotic syndrome was observed in 4 patients during the follow-up period, and 1 entered into chronic renal failure. Three patients had microscopic hematuria and proteinuria and 2 elevated blood pressure at the latest assessment visit. No patient had clinical or laboratory findings compatible with chronic bacterial, parasitic or viral infections (hepatitis B or C), malignancies, or other disorders known to be associated with MCGN. In conclusion, Puumala hantavirus has to be added to the list of potential agents associated with type I MCGN. Further studies are necessary to establish the incidence of MCGN caused by various hantavirus infections.

[Indexed for MEDLINE]

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